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libcxx_old/test/libcxx/depr/exception.unexpected/set_unexpected.pass.cpp

41 lines
1.0 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
//
//===----------------------------------------------------------------------===//
// test set_unexpected
// MODULES_DEFINES: _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
#define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
#include <exception>
#include <cassert>
#include <cstdlib>
#include "test_macros.h"
void f1() {}
void f2() {}
void f3()
{
std::exit(0);
}
int main(int, char**)
{
std::unexpected_handler old = std::set_unexpected(f1);
// verify there is a previous unexpected handler
assert(old);
// verify f1 was replace with f2
assert(std::set_unexpected(f2) == f1);
// verify calling original unexpected handler calls terminate
std::set_terminate(f3);
(*old)();
assert(0);
return 0;
}