blob: cc607d9458de9eff92ab49bfcfadc51454b96e32 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <ios>
// class ios_base::failure
// explicit failure(const string& msg, const error_code& ec = io_errc::stream);
#include <ios>
#include <string>
#include <system_error>
#include <cassert>
int main()
{
// LWG2462 std::ios_base::failure is overspecified
static_assert((std::is_base_of<std::system_error, std::ios_base::failure>::value), "");
{
std::string what_arg("io test message");
std::ios_base::failure se(what_arg, make_error_code(std::errc::is_a_directory));
assert(se.code() == std::make_error_code(std::errc::is_a_directory));
std::string what_message(se.what());
assert(what_message.find(what_arg) != std::string::npos);
assert(what_message.find(std::generic_category().message(static_cast<int>
(std::errc::is_a_directory))) != std::string::npos);
}
{
std::string what_arg("io test message");
std::ios_base::failure se(what_arg);
assert(se.code() == std::make_error_code(std::io_errc::stream));
std::string what_message(se.what());
assert(what_message.find(what_arg) != std::string::npos);
assert(what_message.find(std::iostream_category().message(static_cast<int>
(std::io_errc::stream))) != std::string::npos);
}
}
|
