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| <a href="parameter_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#ifndef DMLC_PARAMETER_H_</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#define DMLC_PARAMETER_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <cstdlib></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <cmath></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <sstream></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <limits></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <set></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <typeinfo></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <stdexcept></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <iostream></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <iomanip></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <cerrno></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html">./base.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="json_8h.html">./json.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "./logging.h"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="type__traits_8h.html">./type_traits.h</a>"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="optional_8h.html">./optional.h</a>"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="strtonum_8h.html">./strtonum.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespacedmlc.html">dmlc</a> {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// this file is backward compatible with non-c++11</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"></span><span class="keyword">struct </span>ParamError : <span class="keyword">public</span> dmlc::Error {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">explicit</span> ParamError(<span class="keyword">const</span> std::string &msg)</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  : <a class="code" href="namespacedmlc.html">dmlc</a>::Error(msg) {}</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> };</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">template</span><<span class="keyword">typename</span> ValueType></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">inline</span> ValueType GetEnv(<span class="keyword">const</span> <span class="keywordtype">char</span> *key,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  ValueType default_value);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">template</span><<span class="keyword">typename</span> ValueType></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> SetEnv(<span class="keyword">const</span> <span class="keywordtype">char</span> *key,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  ValueType value);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">namespace </span>parameter {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// forward declare ParamManager</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">class </span>ParamManager;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// forward declare FieldAccessEntry</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">class </span>FieldAccessEntry;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// forward declare FieldEntry</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">template</span><<span class="keyword">typename</span> DType></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">class </span>FieldEntry;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// forward declare ParamManagerSingleton</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">template</span><<span class="keyword">typename</span> PType></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">struct </span>ParamManagerSingleton;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">enum</span> ParamInitOption {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  kAllowUnknown,</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  kAllMatch,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  kAllowHidden</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> };</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> } <span class="comment">// namespace parameter</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"></span><span class="keyword">struct </span>ParamFieldInfo {</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  std::string name;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  std::string type;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  std::string type_info_str;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  std::string description;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> };</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">template</span><<span class="keyword">typename</span> PType></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">struct </span>Parameter {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Container></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> Init(<span class="keyword">const</span> Container &kwargs,</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  parameter::ParamInitOption option = parameter::kAllowHidden) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  PType::__MANAGER__()->RunInit(static_cast<PType*>(<span class="keyword">this</span>),</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  kwargs.begin(), kwargs.end(),</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  NULL,</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  option);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Container></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">inline</span> std::vector<std::pair<std::string, std::string> ></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  InitAllowUnknown(<span class="keyword">const</span> Container &kwargs) {</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  std::vector<std::pair<std::string, std::string> > unknown;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  PType::__MANAGER__()->RunInit(static_cast<PType*>(<span class="keyword">this</span>),</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  kwargs.begin(), kwargs.end(),</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  &unknown, parameter::kAllowUnknown);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> unknown;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Container></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  std::vector<std::pair<std::string, std::string> ></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  UpdateAllowUnknown(Container <span class="keyword">const</span>& kwargs, <span class="keywordtype">bool</span>* out_changed = <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  std::vector<std::pair<std::string, std::string> > unknown;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">bool</span> changed {<span class="keyword">false</span>};</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  changed = PType::__MANAGER__()->RunUpdate(static_cast<PType*>(<span class="keyword">this</span>),</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  kwargs.begin(), kwargs.end(),</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  parameter::kAllowUnknown, &unknown, <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> (out_changed) { *out_changed = changed; }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> unknown;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Container></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> UpdateDict(Container *dict)<span class="keyword"> const </span>{</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  PType::__MANAGER__()->UpdateDict(this->head(), dict);</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">inline</span> std::map<std::string, std::string> __DICT__()<span class="keyword"> const </span>{</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  std::vector<std::pair<std::string, std::string> > vec</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  = PType::__MANAGER__()->GetDict(this->head());</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> std::map<std::string, std::string>(vec.begin(), vec.end());</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> Save(<a class="code" href="classdmlc_1_1JSONWriter.html">dmlc::JSONWriter</a> *writer)<span class="keyword"> const </span>{</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  writer-><a class="code" href="classdmlc_1_1JSONWriter.html#ac16c9b279f64512117fdefb2ede8662d">Write</a>(this->__DICT__());</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> Load(<a class="code" href="classdmlc_1_1JSONReader.html">dmlc::JSONReader</a> *reader) {</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  std::map<std::string, std::string> kwargs;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  reader-><a class="code" href="classdmlc_1_1JSONReader.html#a74487e106bca0cc16b676f539f69a4bf">Read</a>(&kwargs);</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  this->Init(kwargs);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">inline</span> <span class="keyword">static</span> std::vector<ParamFieldInfo> __FIELDS__() {</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> PType::__MANAGER__()->GetFieldInfo();</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">inline</span> <span class="keyword">static</span> std::string __DOC__() {</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  std::ostringstream os;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  PType::__MANAGER__()->PrintDocString(os);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> os.str();</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keyword">template</span><<span class="keyword">typename</span> DType></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keyword">inline</span> parameter::FieldEntry<DType>& DECLARE(</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  parameter::ParamManagerSingleton<PType> *manager,</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keyword">const</span> std::string &key, DType &ref) { <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  parameter::FieldEntry<DType> *e =</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">new</span> parameter::FieldEntry<DType>();</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  e->Init(key, this->head(), ref);</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  manager->manager.AddEntry(key, e);</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span> *e;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">inline</span> PType *head()<span class="keyword"> const </span>{</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>PType*<span class="keyword">></span>(<span class="keyword">const_cast<</span>Parameter<PType>*<span class="keyword">></span>(<span class="keyword">this</span>));</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> };</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="preprocessor">#define DMLC_DECLARE_PARAMETER(PType) \</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="preprocessor"> static ::dmlc::parameter::ParamManager *__MANAGER__(); \</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="preprocessor"> inline void __DECLARE__(::dmlc::parameter::ParamManagerSingleton<PType> *manager) \</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="preprocessor"></span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="preprocessor">#define DMLC_DECLARE_FIELD(FieldName) this->DECLARE(manager, #FieldName, FieldName)</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="preprocessor">#define DMLC_DECLARE_ALIAS(FieldName, AliasName) manager->manager.AddAlias(#FieldName, #AliasName)</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="preprocessor">#define DMLC_REGISTER_PARAMETER(PType) \</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="preprocessor"> ::dmlc::parameter::ParamManager *PType::__MANAGER__() { \</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor"> static ::dmlc::parameter::ParamManagerSingleton<PType> inst(#PType); \</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor"> return &inst.manager; \</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="preprocessor"> static DMLC_ATTRIBUTE_UNUSED ::dmlc::parameter::ParamManager& \</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="preprocessor"> __make__ ## PType ## ParamManager__ = \</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="preprocessor"> (*PType::__MANAGER__()) \</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="preprocessor"></span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="keyword">namespace </span>parameter {</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="keyword">class </span>FieldAccessEntry {</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  FieldAccessEntry()</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  : has_default_(false), index_(0) {}</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">virtual</span> ~FieldAccessEntry() {}</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetDefault(<span class="keywordtype">void</span> *head) <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value) <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> Same(<span class="keywordtype">void</span>* head, <span class="keyword">const</span> std::string& value) <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// check if value is OK</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Check(<span class="keywordtype">void</span> *head)<span class="keyword"> const </span>{}</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">virtual</span> std::string GetStringValue(<span class="keywordtype">void</span> *head) <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keyword">virtual</span> ParamFieldInfo GetFieldInfo() <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordtype">bool</span> has_default_;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordtype">size_t</span> index_;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  std::string key_;</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  std::string type_;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  std::string description_;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="comment">// internal offset of the field</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  ptrdiff_t offset_;</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">char</span>* GetRawPtr(<span class="keywordtype">void</span>* head)<span class="keyword"> const </span>{</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(head) + offset_;</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  }</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintDefaultValueString(std::ostream &os) <span class="keyword">const</span> = 0; <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// allow ParamManager to modify self</span></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keyword">friend</span> <span class="keyword">class </span>ParamManager;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> };</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="keyword">class </span>ParamManager {</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  ~ParamManager() {</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < entry_.size(); ++i) {</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keyword">delete</span> entry_[i];</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  }</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keyword">inline</span> FieldAccessEntry *Find(<span class="keyword">const</span> std::string &key)<span class="keyword"> const </span>{</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  std::map<std::string, FieldAccessEntry*>::const_iterator it =</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  entry_map_.find(key);</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">if</span> (it == entry_map_.end()) <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">return</span> it->second;</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  }</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keyword">template</span><<span class="keyword">typename</span> RandomAccessIterator></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> RunInit(<span class="keywordtype">void</span> *head,</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  RandomAccessIterator begin,</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  RandomAccessIterator end,</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  std::vector<std::pair<std::string, std::string> > *unknown_args,</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  parameter::ParamInitOption option)<span class="keyword"> const </span>{</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  std::set<FieldAccessEntry*> selected_args;</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  RunUpdate(head, begin, end, option, unknown_args, &selected_args);</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keyword">const</span>& kv : entry_map_) {</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">if</span> (selected_args.find(kv.second) == selected_args.cend()) {</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  kv.second->SetDefault(head);</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  }</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  }</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordflow">for</span> (std::map<std::string, FieldAccessEntry*>::const_iterator it = entry_map_.begin();</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  it != entry_map_.end(); ++it) {</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">if</span> (selected_args.count(it->second) == 0) {</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  it->second->SetDefault(head);</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  }</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  }</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> RandomAccessIterator></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordtype">bool</span> RunUpdate(<span class="keywordtype">void</span> *head,</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  RandomAccessIterator begin,</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  RandomAccessIterator end,</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  parameter::ParamInitOption option,</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  std::vector<std::pair<std::string, std::string> > *unknown_args,</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  std::set<FieldAccessEntry*>* selected_args = <span class="keyword">nullptr</span>)<span class="keyword"> const </span>{</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordtype">bool</span> changed {<span class="keyword">false</span>};</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordflow">for</span> (RandomAccessIterator it = begin; it != end; ++it) {</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">if</span> (FieldAccessEntry *e = Find(it->first)) {</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">if</span> (!e->Same(head, it->second)) {</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  changed = <span class="keyword">true</span>;</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  }</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  e->Set(head, it->second);</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  e->Check(head);</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">if</span> (selected_args) {</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  selected_args->insert(e);</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  }</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">if</span> (unknown_args != NULL) {</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  unknown_args->push_back(*it);</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordflow">if</span> (option != parameter::kAllowUnknown) {</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">if</span> (option == parameter::kAllowHidden &&</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  it->first.length() > 4 &&</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  it->first.find(<span class="stringliteral">"__"</span>) == 0 &&</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  it->first.rfind(<span class="stringliteral">"__"</span>) == it->first.length()-2) {</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  }</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  std::ostringstream os;</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  os << <span class="stringliteral">"Cannot find argument \'"</span> << it->first << <span class="stringliteral">"\', Possible Arguments:\n"</span>;</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  os << <span class="stringliteral">"----------------\n"</span>;</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  PrintDocString(os);</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  }</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  }</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  }</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">return</span> changed;</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  }</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> AddEntry(<span class="keyword">const</span> std::string &key, FieldAccessEntry *e) {</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  e->index_ = entry_.size();</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="comment">// TODO(bing) better error message</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordflow">if</span> (entry_map_.count(key) != 0) {</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  LOG(FATAL) << <span class="stringliteral">"key "</span> << key << <span class="stringliteral">" has already been registered in "</span> << name_;</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  }</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  entry_.push_back(e);</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  entry_map_[key] = e;</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  }</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> AddAlias(<span class="keyword">const</span> std::string& field, <span class="keyword">const</span> std::string& alias) {</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (entry_map_.count(field) == 0) {</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  LOG(FATAL) << <span class="stringliteral">"key "</span> << field << <span class="stringliteral">" has not been registered in "</span> << name_;</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  }</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keywordflow">if</span> (entry_map_.count(alias) != 0) {</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  LOG(FATAL) << <span class="stringliteral">"Alias "</span> << alias << <span class="stringliteral">" has already been registered in "</span> << name_;</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  }</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  entry_map_[alias] = entry_map_[field];</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  }</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> set_name(<span class="keyword">const</span> std::string &name) {</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  name_ = name;</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  }</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keyword">inline</span> std::vector<ParamFieldInfo> GetFieldInfo()<span class="keyword"> const </span>{</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  std::vector<ParamFieldInfo> ret(entry_.size());</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < entry_.size(); ++i) {</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  ret[i] = entry_[i]->GetFieldInfo();</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  }</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> PrintDocString(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < entry_.size(); ++i) {</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  ParamFieldInfo info = entry_[i]->GetFieldInfo();</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  os << info.name << <span class="stringliteral">" : "</span> << info.type_info_str << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordflow">if</span> (info.description.length() != 0) {</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  os << <span class="stringliteral">" "</span> << info.description << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  }</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  }</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  }</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">inline</span> std::vector<std::pair<std::string, std::string> > GetDict(<span class="keywordtype">void</span> * head)<span class="keyword"> const </span>{</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  std::vector<std::pair<std::string, std::string> > ret;</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">for</span> (std::map<std::string, FieldAccessEntry*>::const_iterator</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  it = entry_map_.begin(); it != entry_map_.end(); ++it) {</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  ret.push_back(std::make_pair(it->first, it->second->GetStringValue(head)));</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  }</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  }</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Container></div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> UpdateDict(<span class="keywordtype">void</span> * head, Container* dict)<span class="keyword"> const </span>{</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">for</span> (std::map<std::string, FieldAccessEntry*>::const_iterator</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  it = entry_map_.begin(); it != entry_map_.end(); ++it) {</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  (*dict)[it->first] = it->second->GetStringValue(head);</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  }</div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  }</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> </div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  std::string name_;</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  std::vector<FieldAccessEntry*> entry_;</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  std::map<std::string, FieldAccessEntry*> entry_map_;</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> };</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> </div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> </div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment">// The following piece of code will be template heavy and less documented</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment">// singleton parameter manager for certain type, used for initialization</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="keyword">template</span><<span class="keyword">typename</span> PType></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="keyword">struct </span>ParamManagerSingleton {</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  ParamManager manager;</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="keyword">explicit</span> ParamManagerSingleton(<span class="keyword">const</span> std::string &param_name) {</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  PType param;</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  manager.set_name(param_name);</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  param.__DECLARE__(<span class="keyword">this</span>);</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  }</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> };</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> </div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment">// Base class of FieldEntry</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment">// implement set_default</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="keyword">template</span><<span class="keyword">typename</span> TEntry, <span class="keyword">typename</span> DType></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="keyword">class </span>FieldEntryBase : <span class="keyword">public</span> FieldAccessEntry {</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="comment">// entry type</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keyword">typedef</span> TEntry EntryType;</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="comment">// implement set value</span></div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const override </span>{</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  std::istringstream is(value);</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  is >> this->Get(head);</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordflow">if</span> (!is.fail()) {</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">while</span> (!is.eof()) {</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keywordtype">int</span> ch = is.get();</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">if</span> (ch == EOF) {</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  is.clear(); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  }</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">isspace</a>(ch)) {</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  is.setstate(std::ios::failbit); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  }</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  }</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  }</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> </div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="keywordflow">if</span> (is.fail()) {</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  std::ostringstream os;</div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  os << <span class="stringliteral">"Invalid Parameter format for "</span> << key_</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  << <span class="stringliteral">" expect "</span> << type_ << <span class="stringliteral">" but value=\'"</span> << value<< <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  }</div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  }</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> </div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// Don't check this function for Undefined Behavior (UB), as the function</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="comment">// reads from a possibly uninitialized field</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <a class="code" href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html#ae48f57de53e5271fa1394e04cef5dd23">DMLC_SUPPRESS_UBSAN</a></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordtype">bool</span> Same(<span class="keywordtype">void</span>* head, std::string <span class="keyword">const</span>& value)<span class="keyword"> const override </span>{</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  DType old = this->Get(head);</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  DType now;</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  std::istringstream is(value);</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  is >> now;</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="comment">// don't require = operator</span></div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keywordtype">bool</span> is_same = std::equal(</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  reinterpret_cast<char*>(&now), reinterpret_cast<char*>(&now) + <span class="keyword">sizeof</span>(now),</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  reinterpret_cast<char*>(&old));</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="keywordflow">return</span> is_same;</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  }</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  std::string GetStringValue(<span class="keywordtype">void</span> *head)<span class="keyword"> const override </span>{</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  std::ostringstream os;</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  PrintValue(os, this->Get(head));</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">return</span> os.str();</div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  }</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  ParamFieldInfo GetFieldInfo()<span class="keyword"> const override </span>{</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  ParamFieldInfo info;</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  std::ostringstream os;</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  info.name = key_;</div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  info.type = type_;</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  os << type_;</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keywordflow">if</span> (has_default_) {</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  os << <span class="charliteral">','</span> << <span class="stringliteral">" optional, default="</span>;</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  PrintDefaultValueString(os);</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  os << <span class="stringliteral">", required"</span>;</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  }</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  info.type_info_str = os.str();</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  info.description = description_;</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keywordflow">return</span> info;</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  }</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="comment">// implement set head to default value</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="keywordtype">void</span> SetDefault(<span class="keywordtype">void</span> *head)<span class="keyword"> const override </span>{</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keywordflow">if</span> (!has_default_) {</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  std::ostringstream os;</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  os << <span class="stringliteral">"Required parameter "</span> << key_</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  << <span class="stringliteral">" of "</span> << type_ << <span class="stringliteral">" is not presented"</span>;</div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  this->Get(head) = default_value_;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  }</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  }</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="comment">// return reference of self as derived type</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keyword">inline</span> TEntry &<span class="keyword">self</span>() {</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">return</span> *(<span class="keyword">static_cast<</span>TEntry*<span class="keyword">></span>(<span class="keyword">this</span>));</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  }</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="comment">// implement set_default</span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keyword">inline</span> TEntry &set_default(<span class="keyword">const</span> DType &default_value) {</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  default_value_ = default_value;</div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  has_default_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="comment">// return self to allow chaining</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  }</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="comment">// implement describe</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keyword">inline</span> TEntry &describe(<span class="keyword">const</span> std::string &description) {</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  description_ = description;</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="comment">// return self to allow chaining</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  }</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="comment">// initialization function</span></div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> Init(<span class="keyword">const</span> std::string &key,</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keywordtype">void</span> *head, DType &ref) { <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  this->key_ = key;</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <span class="keywordflow">if</span> (this->type_.length() == 0) {</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  this->type_ = dmlc::type_name<DType>();</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  }</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  this->offset_ = ((<span class="keywordtype">char</span>*)&ref) - ((<span class="keywordtype">char</span>*)head); <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  }</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> </div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="comment">// print the value</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, DType value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  os << value;</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  }</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keywordtype">void</span> PrintDefaultValueString(std::ostream &os)<span class="keyword"> const override </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  PrintValue(os, default_value_);</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  }</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="comment">// get the internal representation of parameter</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <span class="comment">// for example if this entry corresponds field param.learning_rate</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="comment">// then Get(&param) will return reference to param.learning_rate</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keyword">inline</span> DType &Get(<span class="keywordtype">void</span> *head)<span class="keyword"> const </span>{</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="keywordflow">return</span> *(DType*)this->GetRawPtr(head); <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  }</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="comment">// default value of field</span></div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  DType default_value_;</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span> };</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span> </div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span> <span class="comment">// parameter base for numeric types that have range</span></div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span> <span class="keyword">template</span><<span class="keyword">typename</span> TEntry, <span class="keyword">typename</span> DType></div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> <span class="keyword">class </span>FieldEntryNumeric</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  : <span class="keyword">public</span> FieldEntryBase<TEntry, DType> {</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  FieldEntryNumeric()</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  : has_begin_(false), has_end_(false) {}</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="comment">// implement set_range</span></div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  <span class="keyword">virtual</span> TEntry &set_range(DType begin, DType end) {</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  begin_ = begin; end_ = end;</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  has_begin_ = <span class="keyword">true</span>; has_end_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  }</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="comment">// implement set_range</span></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keyword">virtual</span> TEntry &set_lower_bound(DType begin) {</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  begin_ = begin; has_begin_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  }</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="comment">// consistency check for numeric ranges</span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Check(<span class="keywordtype">void</span> *head)<span class="keyword"> const </span>{</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  FieldEntryBase<TEntry, DType>::Check(head);</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  DType v = this->Get(head);</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">if</span> (has_begin_ && has_end_) {</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keywordflow">if</span> (v < begin_ || v > end_) {</div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  std::ostringstream os;</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  os << <span class="stringliteral">"value "</span> << v << <span class="stringliteral">" for Parameter "</span> << this->key_</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  << <span class="stringliteral">" exceed bound ["</span> << begin_ << <span class="charliteral">','</span> << end_ <<<span class="charliteral">']'</span> << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  os << this->key_ << <span class="stringliteral">": "</span> << this->description_;</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  }</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (has_begin_ && v < begin_) {</div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  std::ostringstream os;</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  os << <span class="stringliteral">"value "</span> << v << <span class="stringliteral">" for Parameter "</span> << this->key_</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  << <span class="stringliteral">" should be greater equal to "</span> << begin_ << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  os << this->key_ << <span class="stringliteral">": "</span> << this->description_;</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (has_end_ && v > end_) {</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  std::ostringstream os;</div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  os << <span class="stringliteral">"value "</span> << v << <span class="stringliteral">" for Parameter "</span> << this->key_</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  << <span class="stringliteral">" should be smaller equal to "</span> << end_ << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  os << this->key_ << <span class="stringliteral">": "</span> << this->description_;</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  }</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  }</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span> </div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <span class="comment">// whether it have begin and end range</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="keywordtype">bool</span> has_begin_, has_end_;</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="comment">// data bound</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  DType begin_, end_;</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> };</div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> </div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span> <span class="keyword">template</span><<span class="keyword">typename</span> DType></div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span> <span class="keyword">class </span>FieldEntry :</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="keyword">public</span> IfThenElseType<dmlc::is_arithmetic<DType>::value,</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  FieldEntryNumeric<FieldEntry<DType>, DType>,</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  FieldEntryBase<FieldEntry<DType>, DType> >::Type {</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span> };</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span> <span class="comment">// specialize define for int(enum)</span></div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span> <span class="keyword">template</span><></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span> <span class="keyword">class </span>FieldEntry<int></div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  : <span class="keyword">public</span> FieldEntryNumeric<FieldEntry<int>, int> {</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="comment">// construct</span></div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  FieldEntry<int>() : is_enum_(<span class="keyword">false</span>) {}</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="comment">// parent</span></div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keyword">typedef</span> FieldEntryNumeric<FieldEntry<int>, <span class="keywordtype">int</span>> Parent;</div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="comment">// override set</span></div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keywordflow">if</span> (is_enum_) {</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  std::map<std::string, int>::const_iterator it = enum_map_.find(value);</div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  std::ostringstream os;</div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="keywordflow">if</span> (it == enum_map_.end()) {</div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  os << <span class="stringliteral">"Invalid Input: \'"</span> << value;</div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  os << <span class="stringliteral">"\', valid values are: "</span>;</div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  PrintEnums(os);</div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  os << it->second;</div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  Parent::Set(head, os.str());</div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  }</div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  Parent::Set(head, value);</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  }</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  }</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="keyword">virtual</span> ParamFieldInfo GetFieldInfo()<span class="keyword"> const </span>{</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="keywordflow">if</span> (is_enum_) {</div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  ParamFieldInfo info;</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  std::ostringstream os;</div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  info.name = key_;</div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  info.type = type_;</div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  PrintEnums(os);</div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keywordflow">if</span> (has_default_) {</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  os << <span class="charliteral">','</span> << <span class="stringliteral">"optional, default="</span>;</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  PrintDefaultValueString(os);</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  os << <span class="stringliteral">", required"</span>;</div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  }</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  info.type_info_str = os.str();</div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  info.description = description_;</div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="keywordflow">return</span> info;</div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">return</span> Parent::GetFieldInfo();</div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  }</div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  }</div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">// add enum</span></div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="keyword">inline</span> FieldEntry<int> &add_enum(<span class="keyword">const</span> std::string &key, <span class="keywordtype">int</span> value) {</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  <span class="keywordflow">if</span> ((enum_map_.size() != 0 && enum_map_.count(key) != 0) || \</div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  enum_back_map_.count(value) != 0) {</div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  std::ostringstream os;</div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  os << <span class="stringliteral">"Enum "</span> << <span class="stringliteral">"("</span> << key << <span class="stringliteral">": "</span> << value << <span class="stringliteral">" exisit!"</span> << <span class="stringliteral">")\n"</span>;</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  os << <span class="stringliteral">"Enums: "</span>;</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keywordflow">for</span> (std::map<std::string, int>::const_iterator it = enum_map_.begin();</div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  it != enum_map_.end(); ++it) {</div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  os << <span class="stringliteral">"("</span> << it->first << <span class="stringliteral">": "</span> << it->second << <span class="stringliteral">"), "</span>;</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  }</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  }</div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  enum_map_[key] = value;</div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  enum_back_map_[value] = key;</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  is_enum_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  }</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span> </div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="comment">// enum flag</span></div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keywordtype">bool</span> is_enum_;</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <span class="comment">// enum map</span></div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  std::map<std::string, int> enum_map_;</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="comment">// enum map</span></div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  std::map<int, std::string> enum_back_map_;</div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  <span class="comment">// override print behavior</span></div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintDefaultValueString(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  os << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  PrintValue(os, default_value_);</div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  os << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  }</div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="comment">// override print default</span></div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, <span class="keywordtype">int</span> value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="keywordflow">if</span> (is_enum_) {</div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  CHECK_NE(enum_back_map_.count(value), 0U)</div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  << <span class="stringliteral">"Value not found in enum declared"</span>;</div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  os << enum_back_map_.at(value);</div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  os << value;</div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  }</div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  }</div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span> </div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span> </div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> PrintEnums(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  os << <span class="charliteral">'{'</span>;</div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  <span class="keywordflow">for</span> (std::map<std::string, int>::const_iterator</div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  it = enum_map_.begin(); it != enum_map_.end(); ++it) {</div><div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  <span class="keywordflow">if</span> (it != enum_map_.begin()) {</div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  os << <span class="stringliteral">", "</span>;</div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  }</div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  os << <span class="stringliteral">"\'"</span> << it->first << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  }</div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  os << <span class="charliteral">'}'</span>;</div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  }</div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span> };</div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span> </div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span> </div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span> <span class="comment">// specialize define for optional<int>(enum)</span></div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span> <span class="keyword">template</span><></div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span> <span class="keyword">class </span>FieldEntry<optional<int> ></div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  : <span class="keyword">public</span> FieldEntryBase<FieldEntry<optional<int> >, optional<int> > {</div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="comment">// construct</span></div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  FieldEntry<optional<int> >() : is_enum_(<span class="keyword">false</span>) {}</div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  <span class="comment">// parent</span></div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keyword">typedef</span> FieldEntryBase<FieldEntry<optional<int> >, optional<int> > Parent;</div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <span class="comment">// override set</span></div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keywordflow">if</span> (is_enum_ && value != <span class="stringliteral">"None"</span>) {</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  std::map<std::string, int>::const_iterator it = enum_map_.find(value);</div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  std::ostringstream os;</div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="keywordflow">if</span> (it == enum_map_.end()) {</div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  os << <span class="stringliteral">"Invalid Input: \'"</span> << value;</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  os << <span class="stringliteral">"\', valid values are: "</span>;</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  PrintEnums(os);</div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  os << it->second;</div><div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  Parent::Set(head, os.str());</div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  }</div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  Parent::Set(head, value);</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  }</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  }</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="keyword">virtual</span> ParamFieldInfo GetFieldInfo()<span class="keyword"> const </span>{</div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keywordflow">if</span> (is_enum_) {</div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  ParamFieldInfo info;</div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  std::ostringstream os;</div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  info.name = key_;</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  info.type = type_;</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  PrintEnums(os);</div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="keywordflow">if</span> (has_default_) {</div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  os << <span class="charliteral">','</span> << <span class="stringliteral">"optional, default="</span>;</div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  PrintDefaultValueString(os);</div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  os << <span class="stringliteral">", required"</span>;</div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  }</div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  info.type_info_str = os.str();</div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  info.description = description_;</div><div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  <span class="keywordflow">return</span> info;</div><div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  <span class="keywordflow">return</span> Parent::GetFieldInfo();</div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  }</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  }</div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <span class="comment">// add enum</span></div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  <span class="keyword">inline</span> FieldEntry<optional<int> > &add_enum(<span class="keyword">const</span> std::string &key, <span class="keywordtype">int</span> value) {</div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  CHECK_NE(key, <span class="stringliteral">"None"</span>) << <span class="stringliteral">"None is reserved for empty optional<int>"</span>;</div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  <span class="keywordflow">if</span> ((enum_map_.size() != 0 && enum_map_.count(key) != 0) || \</div><div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  enum_back_map_.count(value) != 0) {</div><div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  std::ostringstream os;</div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  os << <span class="stringliteral">"Enum "</span> << <span class="stringliteral">"("</span> << key << <span class="stringliteral">": "</span> << value << <span class="stringliteral">" exisit!"</span> << <span class="stringliteral">")\n"</span>;</div><div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  os << <span class="stringliteral">"Enums: "</span>;</div><div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  <span class="keywordflow">for</span> (std::map<std::string, int>::const_iterator it = enum_map_.begin();</div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  it != enum_map_.end(); ++it) {</div><div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  os << <span class="stringliteral">"("</span> << it->first << <span class="stringliteral">": "</span> << it->second << <span class="stringliteral">"), "</span>;</div><div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  }</div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  }</div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  enum_map_[key] = value;</div><div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  enum_back_map_[value] = key;</div><div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  is_enum_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <span class="keywordflow">return</span> this-><span class="keyword">self</span>();</div><div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  }</div><div class="line"><a name="l00973"></a><span class="lineno"> 973</span> </div><div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  <span class="comment">// enum flag</span></div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  <span class="keywordtype">bool</span> is_enum_;</div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  <span class="comment">// enum map</span></div><div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  std::map<std::string, int> enum_map_;</div><div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  <span class="comment">// enum map</span></div><div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  std::map<int, std::string> enum_back_map_;</div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  <span class="comment">// override print behavior</span></div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintDefaultValueString(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  os << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  PrintValue(os, default_value_);</div><div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  os << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  }</div><div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  <span class="comment">// override print default</span></div><div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, optional<int> value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  <span class="keywordflow">if</span> (is_enum_) {</div><div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  <span class="keywordflow">if</span> (!value) {</div><div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  os << <span class="stringliteral">"None"</span>;</div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  CHECK_NE(enum_back_map_.count(value.value()), 0U)</div><div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  << <span class="stringliteral">"Value not found in enum declared"</span>;</div><div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  os << enum_back_map_.at(value.value());</div><div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  }</div><div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  os << value;</div><div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  }</div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  }</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span> </div><div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> </div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> PrintEnums(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  os << <span class="stringliteral">"{None"</span>;</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  <span class="keywordflow">for</span> (std::map<std::string, int>::const_iterator</div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  it = enum_map_.begin(); it != enum_map_.end(); ++it) {</div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  os << <span class="stringliteral">", "</span>;</div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  os << <span class="stringliteral">"\'"</span> << it->first << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  }</div><div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  os << <span class="charliteral">'}'</span>;</div><div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  }</div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span> };</div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span> </div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span> <span class="comment">// specialize define for string</span></div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span> <span class="keyword">template</span><></div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span> <span class="keyword">class </span>FieldEntry<<a class="code" href="namespacestd.html">std</a>::string></div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  : <span class="keyword">public</span> FieldEntryBase<FieldEntry<std::string>, std::string> {</div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="comment">// parent class</span></div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  <span class="keyword">typedef</span> FieldEntryBase<FieldEntry<std::string>, std::string> Parent;</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <span class="comment">// override set</span></div><div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  this->Get(head) = value;</div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  }</div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="comment">// override print default</span></div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintDefaultValueString(std::ostream &os)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  os << <span class="charliteral">'\''</span> << default_value_ << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  }</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span> };</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span> </div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> <span class="comment">// specialize define for bool</span></div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span> <span class="keyword">template</span><></div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> <span class="keyword">class </span>FieldEntry<bool></div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  : <span class="keyword">public</span> FieldEntryBase<FieldEntry<bool>, bool> {</div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="comment">// parent class</span></div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  <span class="keyword">typedef</span> FieldEntryBase<FieldEntry<bool>, <span class="keywordtype">bool</span>> Parent;</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  <span class="comment">// override set</span></div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  std::string lower_case; lower_case.resize(value.length());</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  std::transform(value.begin(), value.end(), lower_case.begin(), ::tolower);</div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  <span class="keywordtype">bool</span> &ref = this->Get(head);</div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  <span class="keywordflow">if</span> (lower_case == <span class="stringliteral">"true"</span>) {</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  ref = <span class="keyword">true</span>;</div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lower_case == <span class="stringliteral">"false"</span>) {</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  ref = <span class="keyword">false</span>;</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lower_case == <span class="stringliteral">"1"</span>) {</div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  ref = <span class="keyword">true</span>;</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lower_case == <span class="stringliteral">"0"</span>) {</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  ref = <span class="keyword">false</span>;</div><div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  std::ostringstream os;</div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  os << <span class="stringliteral">"Invalid Parameter format for "</span> << key_</div><div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  << <span class="stringliteral">" expect "</span> << type_ << <span class="stringliteral">" but value=\'"</span> << value<< <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  }</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  }</div><div class="line"><a name="l01059"></a><span class="lineno"> 1059</span> </div><div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  <span class="comment">// print default string</span></div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, <span class="keywordtype">bool</span> value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  os << static_cast<int>(value);</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  }</div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span> };</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span> </div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span> </div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> <span class="comment">// specialize define for float. Uses stof for platform independent handling of</span></div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span> <span class="comment">// INF, -INF, NAN, etc.</span></div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> <span class="preprocessor">#if DMLC_USE_CXX11</span></div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span> <span class="keyword">template</span> <></div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> <span class="keyword">class </span>FieldEntry<float> : <span class="keyword">public</span> FieldEntryNumeric<FieldEntry<float>, float> {</div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  <span class="comment">// parent</span></div><div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  <span class="keyword">typedef</span> FieldEntryNumeric<FieldEntry<float>, <span class="keywordtype">float</span>> Parent;</div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  <span class="comment">// override set</span></div><div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  <span class="keywordtype">size_t</span> pos = 0; <span class="comment">// number of characters processed by dmlc::stof()</span></div><div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  <span class="keywordflow">try</span> {</div><div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  this->Get(head) = <a class="code" href="namespacedmlc.html#a43a149fb880b527d393975a884255341">dmlc::stof</a>(value, &pos);</div><div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  } <span class="keywordflow">catch</span> (<span class="keyword">const</span> std::invalid_argument &) {</div><div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  std::ostringstream os;</div><div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  os << <span class="stringliteral">"Invalid Parameter format for "</span> << key_ << <span class="stringliteral">" expect "</span> << type_</div><div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  << <span class="stringliteral">" but value=\'"</span> << value << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  } <span class="keywordflow">catch</span> (<span class="keyword">const</span> std::out_of_range&) {</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  std::ostringstream os;</div><div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  os << <span class="stringliteral">"Out of range value for "</span> << key_ << <span class="stringliteral">", value=\'"</span> << value << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  }</div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  CHECK_LE(pos, value.length()); <span class="comment">// just in case</span></div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  <span class="keywordflow">if</span> (pos < value.length()) {</div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  std::ostringstream os;</div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  os << <span class="stringliteral">"Some trailing characters could not be parsed: \'"</span></div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  << value.substr(pos) << <span class="stringliteral">"\'"</span>;</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  }</div><div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  }</div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span> </div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  <span class="comment">// print the value</span></div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, <span class="keywordtype">float</span> value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  os << std::setprecision(std::numeric_limits<float>::max_digits10) << value;</div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  }</div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span> };</div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span> </div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span> <span class="comment">// specialize define for double. Uses stod for platform independent handling of</span></div><div class="line"><a name="l01108"></a><span class="lineno"> 1108</span> <span class="comment">// INF, -INF, NAN, etc.</span></div><div class="line"><a name="l01109"></a><span class="lineno"> 1109</span> <span class="keyword">template</span> <></div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span> <span class="keyword">class </span>FieldEntry<double></div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  : <span class="keyword">public</span> FieldEntryNumeric<FieldEntry<double>, double> {</div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  <span class="comment">// parent</span></div><div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  <span class="keyword">typedef</span> FieldEntryNumeric<FieldEntry<double>, <span class="keywordtype">double</span>> Parent;</div><div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>  <span class="comment">// override set</span></div><div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">void</span> *head, <span class="keyword">const</span> std::string &value)<span class="keyword"> const </span>{</div><div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  <span class="keywordtype">size_t</span> pos = 0; <span class="comment">// number of characters processed by dmlc::stod()</span></div><div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  <span class="keywordflow">try</span> {</div><div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  this->Get(head) = <a class="code" href="namespacedmlc.html#a5f49479b0736b8709986ead800e1bfdc">dmlc::stod</a>(value, &pos);</div><div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  } <span class="keywordflow">catch</span> (<span class="keyword">const</span> std::invalid_argument &) {</div><div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  std::ostringstream os;</div><div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  os << <span class="stringliteral">"Invalid Parameter format for "</span> << key_ << <span class="stringliteral">" expect "</span> << type_</div><div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  << <span class="stringliteral">" but value=\'"</span> << value << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  } <span class="keywordflow">catch</span> (<span class="keyword">const</span> std::out_of_range&) {</div><div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  std::ostringstream os;</div><div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  os << <span class="stringliteral">"Out of range value for "</span> << key_ << <span class="stringliteral">", value=\'"</span> << value << <span class="charliteral">'\''</span>;</div><div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  }</div><div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  CHECK_LE(pos, value.length()); <span class="comment">// just in case</span></div><div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  <span class="keywordflow">if</span> (pos < value.length()) {</div><div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  std::ostringstream os;</div><div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  os << <span class="stringliteral">"Some trailing characters could not be parsed: \'"</span></div><div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  << value.substr(pos) << <span class="stringliteral">"\'"</span>;</div><div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keywordflow">throw</span> dmlc::ParamError(os.str());</div><div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  }</div><div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  }</div><div class="line"><a name="l01138"></a><span class="lineno"> 1138</span> </div><div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  <span class="comment">// print the value</span></div><div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> PrintValue(std::ostream &os, <span class="keywordtype">double</span> value)<span class="keyword"> const </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>  os << std::setprecision(std::numeric_limits<double>::max_digits10) << value;</div><div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  }</div><div class="line"><a name="l01144"></a><span class="lineno"> 1144</span> };</div><div class="line"><a name="l01145"></a><span class="lineno"> 1145</span> <span class="preprocessor">#endif // DMLC_USE_CXX11</span></div><div class="line"><a name="l01146"></a><span class="lineno"> 1146</span> </div><div class="line"><a name="l01147"></a><span class="lineno"> 1147</span> } <span class="comment">// namespace parameter</span></div><div class="line"><a name="l01149"></a><span class="lineno"> 1149</span> <span class="comment"></span></div><div class="line"><a name="l01150"></a><span class="lineno"> 1150</span> <span class="comment">// implement GetEnv</span></div><div class="line"><a name="l01151"></a><span class="lineno"> 1151</span> <span class="keyword">template</span><<span class="keyword">typename</span> ValueType></div><div class="line"><a name="l01152"></a><span class="lineno"> 1152</span> <span class="keyword">inline</span> ValueType GetEnv(<span class="keyword">const</span> <span class="keywordtype">char</span> *key,</div><div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  ValueType default_value) {</div><div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *val = getenv(key);</div><div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  <span class="comment">// On some implementations, if the var is set to a blank string (i.e. "FOO="), then</span></div><div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  <span class="comment">// a blank string will be returned instead of NULL. In order to be consistent, if</span></div><div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  <span class="comment">// the environment var is a blank string, then also behave as if a null was returned.</span></div><div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  <span class="keywordflow">if</span> (val == <span class="keyword">nullptr</span> || !*val) {</div><div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  <span class="keywordflow">return</span> default_value;</div><div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  }</div><div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  ValueType ret;</div><div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  parameter::FieldEntry<ValueType> e;</div><div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  e.Init(key, &ret, ret);</div><div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  e.Set(&ret, val);</div><div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l01166"></a><span class="lineno"> 1166</span> }</div><div class="line"><a name="l01167"></a><span class="lineno"> 1167</span> </div><div class="line"><a name="l01168"></a><span class="lineno"> 1168</span> <span class="comment">// implement SetEnv</span></div><div class="line"><a name="l01169"></a><span class="lineno"> 1169</span> <span class="keyword">template</span><<span class="keyword">typename</span> ValueType></div><div class="line"><a name="l01170"></a><span class="lineno"> 1170</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> SetEnv(<span class="keyword">const</span> <span class="keywordtype">char</span> *key,</div><div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  ValueType value) {</div><div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  parameter::FieldEntry<ValueType> e;</div><div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  e.Init(key, &value, value);</div><div class="line"><a name="l01174"></a><span class="lineno"> 1174</span> <span class="preprocessor">#ifdef _WIN32</span></div><div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  _putenv_s(key, e.GetStringValue(&value).c_str());</div><div class="line"><a name="l01176"></a><span class="lineno"> 1176</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  setenv(key, e.GetStringValue(&value).c_str(), 1);</div><div class="line"><a name="l01178"></a><span class="lineno"> 1178</span> <span class="preprocessor">#endif // _WIN32</span></div><div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> }</div><div class="line"><a name="l01180"></a><span class="lineno"> 1180</span> } <span class="comment">// namespace dmlc</span></div><div class="line"><a name="l01181"></a><span class="lineno"> 1181</span> <span class="preprocessor">#endif // DMLC_PARAMETER_H_</span></div><div class="ttc" id="optional_8h_html"><div class="ttname"><a href="optional_8h.html">optional.h</a></div><div class="ttdoc">Container to hold optional data. </div></div> |
| <div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> optional.h:251</div></div> |
| <div class="ttc" id="namespacedmlc_html_a5f49479b0736b8709986ead800e1bfdc"><div class="ttname"><a href="namespacedmlc.html#a5f49479b0736b8709986ead800e1bfdc">dmlc::stod</a></div><div class="ttdeci">double stod(const std::string &value, size_t *pos=nullptr)</div><div class="ttdoc">A faster implementation of stod(). See documentation of std::stod() for more information. This function will test for overflow and invalid arguments. TODO: the current version does not support hex number TODO: the current version does not handle long decimals: you may only have up to 19 digits after the decimal point, and you cannot have too many digits before the decimal point either. </div><div class="ttdef"><b>Definition:</b> strtonum.h:497</div></div> |
| <div class="ttc" id="strtonum_8h_html"><div class="ttname"><a href="strtonum_8h.html">strtonum.h</a></div><div class="ttdoc">A faster implementation of strtof and strtod. </div></div> |
| <div class="ttc" id="3rdparty_2dmlc-core_2include_2dmlc_2base_8h_html_ae48f57de53e5271fa1394e04cef5dd23"><div class="ttname"><a href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html#ae48f57de53e5271fa1394e04cef5dd23">DMLC_SUPPRESS_UBSAN</a></div><div class="ttdeci">#define DMLC_SUPPRESS_UBSAN</div><div class="ttdoc">helper macro to supress Undefined Behavior Sanitizer for a specific function </div><div class="ttdef"><b>Definition:</b> base.h:157</div></div> |
| <div class="ttc" id="json_8h_html"><div class="ttname"><a href="json_8h.html">json.h</a></div><div class="ttdoc">Lightweight JSON Reader/Writer that read save into C++ data structs. This includes STL composites and...</div></div> |
| <div class="ttc" id="classdmlc_1_1JSONReader_html"><div class="ttname"><a href="classdmlc_1_1JSONReader.html">dmlc::JSONReader</a></div><div class="ttdoc">Lightweight JSON Reader to read any STL compositions and structs. The user need to know the schema of...</div><div class="ttdef"><b>Definition:</b> json.h:44</div></div> |
| <div class="ttc" id="namespacedmlc_html_a52dcf01c9ba22be9b08e455194fb2ab3"><div class="ttname"><a href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">dmlc::isspace</a></div><div class="ttdeci">bool isspace(char c)</div><div class="ttdoc">Inline implementation of isspace(). Tests whether the given character is a whitespace letter...</div><div class="ttdef"><b>Definition:</b> strtonum.h:26</div></div> |
| <div class="ttc" id="namespacedmlc_html"><div class="ttname"><a href="namespacedmlc.html">dmlc</a></div><div class="ttdoc">namespace for dmlc </div><div class="ttdef"><b>Definition:</b> array_view.h:12</div></div> |
| <div class="ttc" id="classdmlc_1_1JSONWriter_html_ac16c9b279f64512117fdefb2ede8662d"><div class="ttname"><a href="classdmlc_1_1JSONWriter.html#ac16c9b279f64512117fdefb2ede8662d">dmlc::JSONWriter::Write</a></div><div class="ttdeci">void Write(const ValueType &value)</div><div class="ttdoc">Write value to json. </div></div> |
| <div class="ttc" id="namespacedmlc_html_a43a149fb880b527d393975a884255341"><div class="ttname"><a href="namespacedmlc.html#a43a149fb880b527d393975a884255341">dmlc::stof</a></div><div class="ttdeci">float stof(const std::string &value, size_t *pos=nullptr)</div><div class="ttdoc">A faster implementation of stof(). See documentation of std::stof() for more information. This function will test for overflow and invalid arguments. TODO: the current version does not support hex number TODO: the current version does not handle long decimals: you may only have up to 19 digits after the decimal point, and you cannot have too many digits before the decimal point either. </div><div class="ttdef"><b>Definition:</b> strtonum.h:467</div></div> |
| <div class="ttc" id="classdmlc_1_1JSONReader_html_a74487e106bca0cc16b676f539f69a4bf"><div class="ttname"><a href="classdmlc_1_1JSONReader.html#a74487e106bca0cc16b676f539f69a4bf">dmlc::JSONReader::Read</a></div><div class="ttdeci">void Read(ValueType *out_value)</div><div class="ttdoc">Read next ValueType. </div></div> |
| <div class="ttc" id="3rdparty_2dmlc-core_2include_2dmlc_2base_8h_html"><div class="ttname"><a href="3rdparty_2dmlc-core_2include_2dmlc_2base_8h.html">base.h</a></div></div> |
| <div class="ttc" id="type__traits_8h_html"><div class="ttname"><a href="type__traits_8h.html">type_traits.h</a></div><div class="ttdoc">type traits information header </div></div> |
| <div class="ttc" id="classdmlc_1_1JSONWriter_html"><div class="ttname"><a href="classdmlc_1_1JSONWriter.html">dmlc::JSONWriter</a></div><div class="ttdoc">Lightweight json to write any STL compositions. </div><div class="ttdef"><b>Definition:</b> json.h:190</div></div> |
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