libexplain/strtoull_on_error.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/strtoull.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
unsigned long long	explain_strtoull_on_error (const char *nptr, char **endptr, int base)

---

Function Documentation

unsigned long long explain_strtoull_on_error	(	const char *	nptr,
		char **	endptr,
		int	base
	)

The explain_strtoull_on_error function is used to call the strtoull(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtoull(3) function.

Parameters:

nptr	The nptr, exactly as to be passed to the strtoull(3) system call.
endptr	The endptr, exactly as to be passed to the strtoull(3) system call.
base	The base, exactly as to be passed to the strtoull(3) system call.

Returns:

The value returned by the wrapped strtoull(3) system call.

Example:

This function is intended to be used in a fashion similar to the following example:

 unsigned long long result = explain_strtoull_on_error(nptr, endptr, base);
 if (result < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Definition at line 27 of file strtoull_on_error.c.