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// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
// This file is part of the "Windows 7 drivers" project.
// For details, see https://github.com/egor-tensin/windows7-drivers.
// Distributed under the MIT License.
#pragma once
#include "common.hpp"
#include "singleton.hpp"
#include <sstream>
#include <string>
#include <system_error>
namespace libservice
{
class WindowsErrorCategory
: public std::error_category
, public Singleton<WindowsErrorCategory>
{
public:
const char* name() const LIBSERVICE_NOEXCEPT { return "Windows"; }
std::string message(int) const;
private:
friend class Singleton<WindowsErrorCategory>;
};
namespace error
{
inline std::string build_what(
const char* function,
const char* file,
int line)
{
std::ostringstream oss;
oss << "Error in function '" << function
<< "' at file '" << file
<< "', line " << line;
return oss.str();
}
}
}
#if defined(_MSC_VER)
#define LIBSERVICE_ERROR_PREFIX \
"Error in function '" LIBSERVICE_FUNCTION_NAME "' at file '" LIBSERVICE_FILE_PATH "', line " LIBSERVICE_LINE_NUMBER_STRING
#elif defined(__GNUC__)
#define LIBSERVICE_ERROR_PREFIX \
libservice::error::build_what(LIBSERVICE_FUNCTION_NAME, LIBSERVICE_FILE_PATH, LIBSERVICE_LINE_NUMBER)
#else
#define LIBSERVICE_ERROR_PREFIX "Error"
#endif
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