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 // {
  14 //     size_t operator()(T val) const;
  15 // };
  16
  17 // Not very portable
  18
  19 #include <vector>
  20 #include <cassert>
  21 #include <iterator>
  22 #include <type_traits>
  23
  24 #include "test_macros.h"
  25 #include "min_allocator.h"
  26
  27 TEST_CONSTEXPR_CXX20 bool tests()
  28 {
  29     {
  30     typedef std::vector<bool> T;
  31     typedef std::hash<T> H;
  32 #if TEST_STD_VER <= 14
  33     static_assert((std::is_same<H::argument_type, T>::value), "" );
  34     static_assert((std::is_same<H::result_type, std::size_t>::value), "" );
  35 #endif
  36     ASSERT_NOEXCEPT(H()(T()));
  37
  38     bool ba[] = {true, false, true, true, false};
  39     T vb(std::begin(ba), std::end(ba));
  40     H h;
  41     assert(h(vb) != 0);
  42     }
  43 #if TEST_STD_VER >= 11
  44     {
  45     typedef std::vector<bool, min_allocator<bool>> T;
  46     typedef std::hash<T> H;
  47 #if TEST_STD_VER <= 14
  48     static_assert((std::is_same<H::argument_type, T>::value), "" );
  49     static_assert((std::is_same<H::result_type, std::size_t>::value), "" );
  50 #endif
  51     ASSERT_NOEXCEPT(H()(T()));
  52     bool ba[] = {true, false, true, true, false};
  53     T vb(std::begin(ba), std::end(ba));
  54     H h;
  55     assert(h(vb) != 0);
  56     }
  57 #endif
  58
  59     return true;
  60 }
  61
  62 int main(int, char**)
  63 {
  64     tests();
  65 #if TEST_STD_VER > 17
  66     static_assert(tests());
  67 #endif
  68     return 0;
  69 }