llvm-project/libcxx/test/std/containers/unord/unord.set/clear.pass.cpp

64 lines
1.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <unordered_set>
// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
// class Alloc = allocator<Value>>
// class unordered_set
// void clear() noexcept;
#include <unordered_set>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
int main(int, char**)
{
{
typedef std::unordered_set<int> C;
typedef int P;
P a[] =
{
P(1),
P(2),
P(3),
P(4),
P(1),
P(2)
};
C c(a, a + sizeof(a)/sizeof(a[0]));
ASSERT_NOEXCEPT(c.clear());
c.clear();
assert(c.size() == 0);
}
#if TEST_STD_VER >= 11
{
typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
typedef int P;
P a[] =
{
P(1),
P(2),
P(3),
P(4),
P(1),
P(2)
};
C c(a, a + sizeof(a)/sizeof(a[0]));
ASSERT_NOEXCEPT(c.clear());
c.clear();
assert(c.size() == 0);
}
#endif
return 0;
}