| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| #ifndef SYSTEM_STL_FUNCTIONAL |
| #define SYSTEM_STL_FUNCTIONAL |
| |
| #if defined(HAVE_STL_INCLUDE_PATH) |
| // TODO: use computed include file name |
| #include_next <functional> |
| #elif defined(_MSC_VER) |
| #include <../../VC/include/functional> |
| namespace std { using tr1::hash; } |
| #if 0 // TODO: enable only when std::_Swap_adl is not available |
| // note: VS2008SP1 has known problems after a security update (KB971092,KB974479,KB974223) |
| namespace std{ template<class _T> void _Swap_adl(_T& l, _T& r) {swap(l,r);} } |
| #endif |
| #else // fall back to boost/tr1 |
| #include <boost/tr1/tr1/functional> |
| #include <boost/functional/hash.hpp> |
| #endif |
| |
| |
| #ifndef NO_STLPORT4_EMULATION |
| |
| namespace std |
| { |
| // emulate SGI extensions to the STL using http://www.sgi.com/tech/stl/stl_function.h as reference |
| template< typename T> struct identity : unary_function<T,T> { T operator()(const T& t) const { return t;} }; |
| template< typename T, typename U> struct project2nd : public binary_function<T,U,U> { U operator()(const T&, const U& u) const { return u;}}; |
| template<typename P> struct select1st : public unary_function<P, typename P::first_type> { const typename P::first_type& operator()(const P& p) const { return p.first; }}; |
| template<typename P> struct select2nd : public unary_function<P, typename P::second_type> { const typename P::second_type& operator()(const P& p) const { return p.second; }}; |
| |
| #if (defined(_MSC_VER) && (_MSC_VER >= 1600)) || defined(__GXX_EXPERIMENTAL_CXX0X__) |
| template<typename T> inline T&& forward( typename identity<T>::type&& t) { return t; } |
| #endif // C++11 move semantics |
| |
| template<typename Op1, typename Op2> class unary_compose : public unary_function<typename Op2::argument_type, typename Op1::result_type> |
| { |
| protected: |
| Op1 aOp1; |
| Op2 aOp2; |
| public: |
| unary_compose( const Op1& rOp1, const Op2& rOp2) : aOp1(rOp1), aOp2(rOp2) {} |
| typename Op1::result_type operator()( const typename Op2::argument_type& x) const { return aOp1(aOp2(x)); } |
| }; |
| |
| template<typename Op1, typename Op2> inline unary_compose<Op1,Op2> compose1( const Op1& rOp1, const Op2& rOp2) { return unary_compose<Op1,Op2>(rOp1, rOp2); } |
| |
| } // namespace std |
| |
| #endif // NO_STLPORT4_EMULATION |
| |
| #endif |
| |