Tiny strerror() implementation

Tiny strerror() implementation. More...

Detailed Description

Tiny strerror() implementation.

Usage

Select module tiny_strerror in order to use it.

#include "tiny_strerror.h"

Note

Using module tiny_strerror_as_strerror will replace all calls to strerror() by calls to tiny_strerror(), which may safe a bit of ROM.

Using module tiny_strerror_minimal will just print the error code value. This will save ~1k of ROM, but won't provide much more information.

Warning

The module tiny_strerror_minimal is not thread-safe.

Files
file	tiny_strerror.h
	Tiny strerror() implementation.

Functions
const char *	tiny_strerror (int errnum)
	Get the name of an errno macro. More...

Function Documentation

tiny_strerror()

const char* tiny_strerror

(

int

errnum

)

Get the name of an errno macro.

Parameters

[in]

errnum

Error code to get the name of

Example:

puts(tiny_strerror(ENOENT)); // prints "ENOENT"
puts(tiny_strerror(-ENXIO)); // prints "-ENXIO"
puts(tiny_strerror(0)); // prints "OK"
puts(tiny_strerror(1337)); // prints "unknown"
puts(tiny_strerror(-1337)); // prints "-unknown"

Returns

String holding the macro name of the error given by errnum

Return values

<tt>"OK"</tt>	If errnum is 0
<tt>"unknown"</tt>	If errnum is not matching any POSIX errno constant
<tt>"-unknown"</tt>	If errnum is negative not matching any negative POSIX errno constant