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/*
* Copyright (C) 2017, OFFIS e.V.
* All rights reserved. See COPYRIGHT file for details.
*
* This software and supporting documentation were developed by
*
* OFFIS e.V.
* R&D Division Health
* Escherweg 2
* D-26121 Oldenburg, Germany
*
*
* Module: config
*
* Author: Thorben Hasenpusch
*
* Purpose: Rudimentary tests for a working <system_error> implementation.
*/
#include <system_error>
#include <cstring>
#ifdef _WIN32
#include <Windows.h>
#endif
int main()
{
// Not much to test, really.
if (strcmp(std::generic_category().name(), "generic") != 0) {
return -1;
}
if (strcmp(std::system_category().name(), "system") != 0) {
return -1;
}
#ifdef _WIN32
// Visual Studio might be using strerror for both categories.
// Test with the highest numbered WINAPI error code; highly unlikely that there exists an equal-numbered errno.
std::system_error system_err(ERROR_API_UNAVAILABLE, std::system_category());
std::system_error generic_err(ERROR_API_UNAVAILABLE, std::generic_category());
// The system error message should be retrieved using FormatMessage(),
// while the generic error message should be retrieved with strerror and be something like "unknown error",
// since it isn't a valid errno.
// The point is, these two should result in different messages.
if (strcmp(system_err.what(), generic_err.what()) == 0) {
// Visual Studio messed up, what a surprise...
return -1;
}
#endif
return 0;
}
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