strerror.h File Reference

#include "rcutils/visibility_control.h"

Include dependency graph for strerror.h:

Go to the source code of this file.

Functions
void	rcutils_strerror (char *buffer, size_t buffer_length)
	Retrieve the string corresponding to the last system error. More...

Function Documentation

rcutils_strerror()

void rcutils_strerror	(	char *	buffer,
		size_t	buffer_length
	)

Retrieve the string corresponding to the last system error.

This function retrieves the value of errno, and calls the system-specific equivalent of strerror on it, storing the output in the provided buffer. If the error message is longer than the buffer, it will be truncated. The memory for the c-string buffer that is passed in must be managed by the caller.

This function is thread-safe.

Parameters

[in,out]	buffer	The buffer in which to store the data
[in]	buffer_length	the maximum length of the buffer