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// <system_error>
10
11// class error_code
12
13// explicit operator bool() const;
14
15#include <system_error>
16#include <cassert>
17#include <string>
18#include <type_traits>
19
20#include "test_macros.h"
21
22int main(int, char**)
23{
24 static_assert(std::is_constructible<bool, std::error_code>::value, "");
25 static_assert(!std::is_convertible<std::error_code, bool>::value, "");
26
27 {
28 const std::error_code ec(6, std::generic_category());
29 assert(static_cast<bool>(ec));
30 }
31 {
32 const std::error_code ec(0, std::generic_category());
33 assert(!static_cast<bool>(ec));
34 }
35
36 return 0;
37}
38

source code of libcxx/test/std/diagnostics/syserr/syserr.errcode/syserr.errcode.observers/bool.pass.cpp