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Diffstat (limited to 'libstdc++-v3/testsuite/backward/hash_map/1.cc')
-rw-r--r-- | libstdc++-v3/testsuite/backward/hash_map/1.cc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/backward/hash_map/1.cc b/libstdc++-v3/testsuite/backward/hash_map/1.cc new file mode 100644 index 000000000..cf05e555b --- /dev/null +++ b/libstdc++-v3/testsuite/backward/hash_map/1.cc @@ -0,0 +1,105 @@ +// { dg-options "-Wno-deprecated" } + +// Copyright (C) 2002, 2005, 2007, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// hash_map (SGI extension) + +#include <cstdlib> +#include <string> +#include <hash_map> +#include <testsuite_hooks.h> + +namespace __gnu_cxx +{ + using std::string; + + inline size_t hash_string(const char* s) + { + unsigned long h; + for (h=0; *s; ++s) { + h = 5*h + *s; + } + return size_t(h); + } + + template<class T> struct hash<T *> + { + size_t operator()(const T *const & s) const + { return reinterpret_cast<size_t>(s); } + }; + + template<> struct hash<string> + { + size_t operator()(const string &s) const { return hash_string(s.c_str()); } + }; + + template<> struct hash<const string> + { + size_t operator()(const string &s) const { return hash_string(s.c_str()); } + }; + + template<class T1, class T2> struct hash<pair<T1,T2> > + { + hash<T1> __fh; + hash<T2> __sh; + size_t operator()(const pair<T1,T2> &p) const { + return __fh(p.first) ^ __sh(p.second); + } + }; +} + +void test01() +{ + const int Size = 5; + bool test __attribute__((unused)) = true; + + using std::string; + using std::pair; + using std::vector; + using __gnu_cxx::hash_map; + + for (int i = 0; i < 10; i++) + { + hash_map<string, int> a; + hash_map<string, int> b; + + vector<pair<string, int> > contents (Size); + for (int j = 0; j < Size; j++) + { + string s; + for (int k = 0; k < 10; k++) + { + s += 'a' + (rand() % 26); + } + contents[j] = make_pair(s,j); + } + for (int j = 0; j < Size; j++) + { + a[contents[j].first] = contents[j].second; + int k = Size - 1 - j; + b[contents[k].first] = contents[k].second; + } + VERIFY( a == b ); + } +} + +int main() +{ + test01(); + return 0; +} |