libexplain/buffer/errno/realloc.h File Reference

#include <libexplain/string_buffer.h>

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Functions
void	explain_buffer_errno_realloc (explain_string_buffer_t *sb, int errnum, void *ptr, size_t size)

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Function Documentation

void explain_buffer_errno_realloc	(	explain_string_buffer_t *	sb,
		int	errnum,
		void *	ptr,
		size_t	size
	)

The explain_buffer_errno_realloc function is used to obtain an explanation of an error returned by the realloc(3) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:

sb	The string buffer to print the message into. If a safe buffer is specified, this function is thread safe.
errnum	The error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
ptr	The original ptr, exactly as passed to the realloc(3) system call.
size	The original size, exactly as passed to the realloc(3) system call.

Definition at line 63 of file realloc.c.