| /*************************************************************************** |
| * |
| * 25.heap.cpp - test exercising 25.3.6 [lib.alg.heap.operations] |
| * |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * 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. |
| * |
| * Copyright 1994-2006 Rogue Wave Software. |
| * |
| **************************************************************************/ |
| |
| // MSVC 6.0 gets an ICE in std::__adjust_heap() in <algorithm.cc> |
| #if defined (_MSC_VER) && _MSC_VER <= 1300 |
| # define _RWSTD_NO_EXPLICIT_INSTANTIATION |
| #endif |
| |
| #include <algorithm> // for make_heap, sort_heap, push_heap, pop_heap |
| #include <cstring> // for strlen, size_t |
| |
| #include <rw_alg_test.h> |
| #include <rw_value.h> // for UserClass |
| #include <rw_driver.h> // for rw_test() |
| |
| /**************************************************************************/ |
| |
| _RWSTD_NAMESPACE (std) { |
| |
| #ifndef _RWSTD_NO_EXPLICIT_INSTANTIATION |
| |
| // 25.3.6.1 - push_heap [lib.push.heap] |
| template |
| void |
| push_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| template |
| void |
| push_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| binary_predicate<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| // 25.3.6.2 - pop_heap [lib.pop.heap] |
| template |
| void |
| pop_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| template |
| void |
| pop_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| binary_predicate<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| // 25.3.6.3 - make_heap [lib.make.heap] |
| template |
| void |
| make_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| template |
| void |
| make_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| binary_predicate<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| // 25.3.6.4 - sort_heap [lib.sort.heap] |
| template |
| void |
| sort_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| template |
| void |
| sort_heap (RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| RandomAccessIter<lt_comp<assign<base<cpy_ctor> > > >, |
| binary_predicate<lt_comp<assign<base<cpy_ctor> > > >); |
| |
| #endif // _RWSTD_NO_EXPLICIT_INSTANTIATION |
| |
| } // namespace std |
| |
| /**************************************************************************/ |
| |
| template <class T> |
| struct Less |
| { |
| static std::size_t funcalls_; |
| |
| // dummy arguments provided to prevent the class from being |
| // default constructible and implicit conversion from int |
| Less (int /* dummy */, int /* dummy */) { |
| funcalls_ = 0; |
| } |
| |
| // return a type other than bool but one that is implicitly |
| // convertible to bool to detect incorrect assumptions |
| conv_to_bool operator() (const T &x, const T &y) /* non-const */ { |
| ++funcalls_; |
| return conv_to_bool::make (x.data_.val_ < y.data_.val_); |
| } |
| |
| static const char* name () { return "Less"; } |
| |
| private: |
| void operator= (Less&); // not assignable |
| }; |
| |
| template<class T> std::size_t Less<T>::funcalls_; |
| |
| /**************************************************************************/ |
| |
| // helper function to verify that the sequence is a valid heap |
| template <class T> |
| bool is_heap (const T* seq, const std::size_t len) |
| { |
| std::size_t parent = 0; |
| for (std::size_t child = 1; child < len; ++child) { |
| |
| if (seq [parent].data_.val_ < seq [child].data_.val_) |
| return false; |
| |
| if ((child & 1) == 0) |
| ++parent; |
| } |
| |
| return true; |
| } |
| |
| /**************************************************************************/ |
| |
| // exercises push_heap, pop_heap, make_heap, sort_heap: 25.3.6.1 - 25.3.6.4 |
| template <class T, class Predicate> |
| void test_heap_operation (int line, |
| const char *src, |
| const T*, |
| const Predicate *ppred, |
| const std::size_t finx) |
| { |
| static const char* const fnames[] = { |
| "make_heap", "push_heap", "pop_heap", "sort_heap" |
| }; |
| |
| typedef RandomAccessIter<T> RandIter; |
| RandIter rand_iter (0, 0, 0); |
| |
| const char* const itname = type_name (rand_iter, (T*)0); |
| const char* const fname = fnames[finx]; |
| const char* const funname = Predicate::name(); |
| |
| const std::size_t nsrc = std::strlen (src); |
| |
| T* const xsrc = T::from_char (src, nsrc); |
| T* const xsrc_end = xsrc + nsrc; |
| |
| int val = xsrc[0].data_.val_; |
| |
| const RandIter first = make_iter (xsrc, xsrc, xsrc_end, rand_iter); |
| const RandIter last = make_iter (xsrc_end, xsrc, xsrc_end, rand_iter); |
| |
| const Predicate pred (0, 0); |
| |
| const std::size_t last_n_op_lt = T::n_total_op_lt_; |
| |
| // for convenience |
| #define HEAP_OP(opname) \ |
| if (ppred) opname (first, last, pred); else opname (first, last) |
| |
| std::size_t ops = 0; |
| |
| // exercise heap operation and compute the expected complexity |
| switch (finx) { |
| case 0: HEAP_OP (std::make_heap); ops = 3 * nsrc; break; |
| case 1: HEAP_OP (std::push_heap); ops = ilog2 (nsrc); break; |
| case 2: HEAP_OP (std::pop_heap); ops = 2 * ilog2 (nsrc); break; |
| case 3: HEAP_OP (std::sort_heap); ops = nsrc * ilog2 (nsrc); break; |
| } |
| |
| const std::size_t n_ops_lt = ppred ? |
| Predicate::funcalls_ : T::n_total_op_lt_ - last_n_op_lt; |
| |
| const std::size_t len = 2 != finx ? nsrc : nsrc - 1; |
| static const int cwidth = sizeof (T); |
| |
| if (2 == finx) { // pop_heap special verification |
| // verify that the maximal element is in |
| // the end of the sequence: 25.3.6.2, p2 |
| rw_assert (val == xsrc[nsrc - 1].data_.val_, 0, line, |
| "line %d std::%s <%s%{?}, %s%{;}> (\"%s\", ...) ==> " |
| "\"%{X=*.*}\", last is %#c, expected %#c", |
| __LINE__, fname, itname, ppred, funname, src, |
| cwidth, int (nsrc), -1, xsrc, |
| xsrc [nsrc - 1].data_.val_, val); |
| } |
| |
| if (3 == finx) { // sort_heap special verification |
| // verify that we got a sorted sequence: 25.3.6.4, p1 |
| rw_assert (is_sorted_lt (xsrc, xsrc_end), 0, line, |
| "line %d std::%s <%s%{?}, %s%{;}> (\"%s\", ...) ==> " |
| "\"%{X=*.*}\" is not sorted", |
| __LINE__, fname, itname, ppred, funname, src, |
| cwidth, int (nsrc), -1, xsrc); |
| } |
| else { |
| // verify that we got a heap: |
| // 25.3.6.1, p2; 25.3.6.2, p2; 25.3.6.3, p1 |
| rw_assert (is_heap (xsrc, len), 0, line, |
| "line %d std::%s <%s%{?}, %s%{;}> (\"%s\", ...) ==> " |
| "\"%{X=*.*}\" is not a heap", |
| __LINE__, fname, itname, ppred, funname, src, |
| cwidth, int (len), -1, xsrc); |
| } |
| |
| // verify the complexity: |
| // 25.3.6.1, p3; 25.3.6.2, p3; 25.3.6.3, p2; 25.3.6.4, p2 |
| rw_assert (n_ops_lt <= ops, 0, line, |
| "line %d std::%s <%s%{?}, %s%{;}> (\"%s\", ...) ==> " |
| "\"%{X=*.*}\" complexity: got %zu invocations of %s, " |
| "expected no more %zu", |
| __LINE__, fname, itname, ppred, funname, src, |
| cwidth, int (nsrc), -1, xsrc, n_ops_lt, |
| ppred ? "predicate" : "operator< ()", ops); |
| |
| delete[] xsrc; |
| } |
| |
| /**************************************************************************/ |
| |
| template <class T, class Predicate> |
| void test_make_heap (const T*, |
| const Predicate *ppred) |
| { |
| rw_info (0, 0, 0, |
| "std::make_heap (%s, %1$s%{?}, %s%{;})", |
| "RandomAccessIterator", 0 != ppred, Predicate::name ()); |
| |
| #define TEST(src) \ |
| test_heap_operation (__LINE__, src, (T*)0, ppred, 0) |
| |
| TEST ("a"); |
| TEST ("ab"); |
| TEST ("ba"); |
| |
| TEST ("abcde"); |
| TEST ("acbed"); |
| TEST ("cbade"); |
| TEST ("debca"); |
| TEST ("ecace"); |
| TEST ("accee"); |
| TEST ("caced"); |
| |
| TEST ("abcdefghij"); |
| TEST ("bcdeafghij"); |
| TEST ("dcbeafihgj"); |
| TEST ("badcfehgji"); |
| TEST ("ebadcfhijg"); |
| |
| TEST ("jihgfedcba"); |
| TEST ("ijhgefdcab"); |
| |
| TEST ("ababababab"); |
| TEST ("babbbababb"); |
| |
| #undef TEST |
| } |
| |
| /**************************************************************************/ |
| |
| template <class T, class Predicate> |
| void test_push_heap (const T*, |
| const Predicate *ppred) |
| { |
| rw_info (0, 0, 0, |
| "std::push_heap (%s, %1$s%{?}, %s%{;})", |
| "RandomAccessIterator", 0 != ppred, Predicate::name ()); |
| |
| #define TEST(src) \ |
| test_heap_operation (__LINE__, src, (T*)0, ppred, 1) |
| |
| TEST ("a"); |
| TEST ("ab"); |
| TEST ("ba"); |
| |
| TEST ("bac"); |
| TEST ("cba"); |
| TEST ("aac"); |
| |
| TEST ("ecdaba"); |
| TEST ("ecdabc"); |
| TEST ("ecdabe"); |
| |
| TEST ("jighefcadj"); |
| TEST ("jighefcada"); |
| TEST ("jighefcadh"); |
| |
| TEST ("jhigcfbeda"); |
| TEST ("jhigcfbedj"); |
| TEST ("jhigcfbedh"); |
| TEST ("jhigcfbedf"); |
| TEST ("jhigcfbede"); |
| TEST ("jhigcfbedg"); |
| |
| TEST ("bbbbbaaaaa"); |
| TEST ("bbbbbaaaab"); |
| |
| #undef TEST |
| } |
| |
| /**************************************************************************/ |
| |
| template <class T, class Predicate> |
| void test_pop_heap (const T*, |
| const Predicate *ppred) |
| { |
| rw_info (0, 0, 0, |
| "std::pop_heap (%s, %1$s%{?}, %s%{;})", |
| "RandomAccessIterator", 0 != ppred, Predicate::name ()); |
| |
| #define TEST(src) \ |
| test_heap_operation (__LINE__, src, (T*)0, ppred, 2) |
| |
| TEST ("a"); |
| TEST ("ba"); |
| |
| TEST ("aaa"); |
| TEST ("cba"); |
| TEST ("caa"); |
| |
| TEST ("ecdab"); |
| TEST ("ecdab"); |
| TEST ("ecdab"); |
| |
| TEST ("jighefcadb"); |
| TEST ("jighcfdbea"); |
| TEST ("jhigcfbeda"); |
| TEST ("jihgfedacb"); |
| TEST ("iihegfabdc"); |
| TEST ("iihgfedcba"); |
| TEST ("iihgefdcab"); |
| |
| TEST ("bbbbbaaaaa"); |
| |
| #undef TEST |
| } |
| |
| /**************************************************************************/ |
| |
| template <class T, class Predicate> |
| void test_sort_heap (const T*, |
| const Predicate *ppred) |
| { |
| rw_info (0, 0, 0, |
| "std::sort_heap (%s, %1$s%{?}, %s%{;})", |
| "RandomAccessIterator", 0 != ppred, Predicate::name()); |
| |
| #define TEST(src) \ |
| test_heap_operation (__LINE__, src, (T*)0, ppred, 3) |
| |
| TEST ("a"); |
| TEST ("ba"); |
| |
| TEST ("aaa"); |
| TEST ("cba"); |
| TEST ("caa"); |
| |
| TEST ("ecdab"); |
| TEST ("ecdab"); |
| TEST ("ecdab"); |
| |
| TEST ("jighefcadb"); |
| TEST ("jighcfdbea"); |
| TEST ("jhigcfbeda"); |
| TEST ("jihgfedacb"); |
| TEST ("iihegfabdc"); |
| TEST ("iihgfedcba"); |
| TEST ("iihgefdcab"); |
| |
| TEST ("bbbbbaaaaa"); |
| |
| #undef TEST |
| } |
| |
| /**************************************************************************/ |
| |
| /* extern */ int rw_opt_no_make_heap; // --no-make_heap |
| /* extern */ int rw_opt_no_push_heap; // --no-push_heap |
| /* extern */ int rw_opt_no_pop_heap; // --no-pop_heap |
| /* extern */ int rw_opt_no_sort_heap; // --no-sort_heap |
| /* extern */ int rw_opt_no_predicate; // --no-predicate |
| |
| /**************************************************************************/ |
| |
| template <class T, class Predicate> |
| void test_heap_operations (const T*, |
| const Predicate *ppred) |
| { |
| if (rw_opt_no_make_heap) { |
| rw_note (0, __FILE__, __LINE__, |
| "std::make_heap test disabled"); |
| } |
| else { |
| test_make_heap ((T*)0, ppred); |
| } |
| |
| if (rw_opt_no_push_heap) { |
| rw_note (0, __FILE__, __LINE__, |
| "std::push_heap test disabled"); |
| } |
| else { |
| test_push_heap ((T*)0, ppred); |
| } |
| |
| if (rw_opt_no_pop_heap) { |
| rw_note (0, __FILE__, __LINE__, |
| "std::pop_heap test disabled"); |
| } |
| else { |
| test_pop_heap ((T*)0, ppred); |
| } |
| |
| if (rw_opt_no_sort_heap) { |
| rw_note (0, __FILE__, __LINE__, |
| "std::sort_heap test disabled"); |
| } |
| else { |
| test_sort_heap ((T*)0, ppred); |
| } |
| } |
| |
| /**************************************************************************/ |
| |
| static int run_test (int, char*[]) |
| { |
| test_heap_operations ((UserClass*)0, (Less<UserClass>*)0); |
| |
| if (rw_opt_no_predicate) { |
| rw_note (0, __FILE__, __LINE__, |
| "heap operations predicate test disabled"); |
| } |
| else { |
| test_heap_operations ((UserClass*)0, (Less<UserClass>*)1); |
| } |
| |
| return 0; |
| } |
| |
| |
| /**************************************************************************/ |
| |
| int main (int argc, char *argv[]) |
| { |
| return rw_test (argc, argv, __FILE__, |
| "lib.alg.heap.operations", |
| 0 /* no comment */, run_test, |
| "|-no-make_heap#" |
| "|-no-push_heap#" |
| "|-no-pop_heap#" |
| "|-no-sort_heap#" |
| "|-no-predicate", |
| &rw_opt_no_make_heap, |
| &rw_opt_no_push_heap, |
| &rw_opt_no_pop_heap, |
| &rw_opt_no_sort_heap, |
| &rw_opt_no_predicate); |
| } |
