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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <functional>
// template <class T>
// struct hash
// {
// size_t operator()(T val) const;
// };
#include <vector>
#include <cassert>
#include <iterator>
#include <type_traits>
#include "test_macros.h"
#include "min_allocator.h"
template <class VB>
TEST_CONSTEXPR_CXX20 void test() {
typedef std::hash<VB> H;
#if TEST_STD_VER <= 14
static_assert((std::is_same<typename H::argument_type, VB>::value), "");
static_assert((std::is_same<typename H::result_type, std::size_t>::value), "");
#endif
ASSERT_NOEXCEPT(H()(VB()));
bool ba[] = {true, false, true, true, false};
VB vb(std::begin(ba), std::end(ba));
H h;
if (!TEST_IS_CONSTANT_EVALUATED) {
const std::size_t hash_value = h(vb);
assert(h(vb) == hash_value);
LIBCPP_ASSERT(hash_value != 0);
}
}
TEST_CONSTEXPR_CXX20 bool tests() {
test<std::vector<bool> >();
#if TEST_STD_VER >= 11
test<std::vector<bool, min_allocator<bool>>>();
#endif
return true;
}
int main(int, char**) {
tests();
#if TEST_STD_VER > 17
static_assert(tests());
#endif
return 0;
}
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