error.hpp File Reference

This file defines macros for creating compile-time error messages. More...

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Macros
#define	IO_ERROR_HPP
#define	IO_STRINGIFY(x)   #x
	Converts a macro argument to a string literal.
#define	IO_TOSTRING(x)   IO_STRINGIFY(x)
	Helper macro to convert the result of a macro expansion to a string.
#define	IO_ERROR_MESSAGE(msg)   (__FILE__ ":" IO_TOSTRING(__LINE__) ": " msg)
	Constructs a formatted error message with the file and line number.

Detailed Description

This file defines macros for creating compile-time error messages.

Definition in file error.hpp.

Macro Definition Documentation

IO_ERROR_HPP

#define IO_ERROR_HPP

Definition at line 22 of file error.hpp.

IO_ERROR_MESSAGE

#define IO_ERROR_MESSAGE

(

msg

)

(__FILE__ ":" IO_TOSTRING(__LINE__) ": " msg)

Constructs a formatted error message with the file and line number.

The resulting string literal is in the format "file:line: message".

Parameters

msg	The custom error message string to append.

Returns

A string literal containing the full error message.

Example

#include "error.hpp"
#include <iostream>
 
void some_function() {
    std::cerr << IO_ERROR_MESSAGE("Something went wrong!") << std::endl;
}
// Possible output:
// /path/to/your/file.cpp:123: Something went wrong!

Definition at line 62 of file error.hpp.

IO_STRINGIFY

#define IO_STRINGIFY

(

x

)

#x

Converts a macro argument to a string literal.

Parameters

x	The argument to stringify.

Definition at line 29 of file error.hpp.

IO_TOSTRING

#define IO_TOSTRING

(

x

)

IO_STRINGIFY(x)

Helper macro to convert the result of a macro expansion to a string.

This is necessary to correctly stringify macros like __LINE__, which must be expanded before being converted to a string.

Parameters

x	The macro to expand and stringify.

Definition at line 39 of file error.hpp.