1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <functional> 11 12 // template <class T> 13 // struct hash 14 // : public unary_function<T, size_t> 15 // { 16 // size_t operator()(T val) const; 17 // }; 18 19 // Not very portable 20 21 #include <vector> 22 #include <cassert> 23 #include <type_traits> 24 25 #include "min_allocator.h" 26 27 int main() 28 { 29 { 30 typedef std::vector<bool> T; 31 typedef std::hash<T> H; 32 static_assert((std::is_same<H::argument_type, T>::value), "" ); 33 static_assert((std::is_same<H::result_type, std::size_t>::value), "" ); 34 ASSERT_NOEXCEPT(H()(T())); 35 36 bool ba[] = {true, false, true, true, false}; 37 T vb(std::begin(ba), std::end(ba)); 38 H h; 39 assert(h(vb) != 0); 40 } 41 #if TEST_STD_VER >= 11 42 { 43 typedef std::vector<bool, min_allocator<bool>> T; 44 typedef std::hash<T> H; 45 static_assert((std::is_same<H::argument_type, T>::value), "" ); 46 static_assert((std::is_same<H::result_type, std::size_t>::value), "" ); 47 ASSERT_NOEXCEPT(H()(T())); 48 bool ba[] = {true, false, true, true, false}; 49 T vb(std::begin(ba), std::end(ba)); 50 H h; 51 assert(h(vb) != 0); 52 } 53 #endif 54 } 55