libcxx/test/std/containers/sequences/vector.bool/vector_bool.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <functional>
  10
  11 // template <class T>
  12 // struct hash
  13 //     : public unary_function<T, size_t>
  14 // {
  15 //     size_t operator()(T val) const;
  16 // };
  17
  18 // Not very portable
  19
  20 #include <vector>
  21 #include <cassert>
  22 #include <type_traits>
  23
  24 #include "test_macros.h"
  25 #include "min_allocator.h"
  26
  27 int main(int, char**)
  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   return 0;
  56 }