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libcxx_old/test/std/utilities/any/any.class/any.modifiers/reset.pass.cpp

68 lines
1.3 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// XFAIL: dylib-has-no-bad_any_cast && !libcpp-no-exceptions
// <any>
// any::reset() noexcept
#include <any>
#include <cassert>
#include "test_macros.h"
#include "any_helpers.h"
int main(int, char**)
{
using std::any;
using std::any_cast;
// empty
{
any a;
// noexcept check
static_assert(
noexcept(a.reset())
, "any.reset() must be noexcept"
);
assertEmpty(a);
a.reset();
assertEmpty(a);
}
// small object
{
any a((small(1)));
assert(small::count == 1);
assertContains<small>(a, 1);
a.reset();
assertEmpty<small>(a);
assert(small::count == 0);
}
// large object
{
any a(large(1));
assert(large::count == 1);
assertContains<large>(a, 1);
a.reset();
assertEmpty<large>(a);
assert(large::count == 0);
}
return 0;
}