Poster of Linux kernelThe best gift for a Linux geek
explain_snprintf_or_die

explain_snprintf_or_die

Section: C Library Functions (3)
Local index Up
 

NAME

explain_snprintf_or_die - formatted output conversion and report errors  

SYNOPSIS

#include <libexplain/snprintf.h>

int explain_snprintf_or_die(char *data, size_t data_size, const char *format);
int explain_snprintf_on_error(char *data, size_t data_size, const char *format);  

DESCRIPTION

The explain_snprintf_or_die function is used to call the snprintf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_snprintf(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_snprintf_on_error function is used to call the snprintf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_snprintf(3) function, but still returns to the caller.

data
The data, exactly as to be passed to the snprintf(3) system call.
data_size
The data_size, exactly as to be passed to the snprintf(3) system call.
format
The format, exactly as to be passed to the snprintf(3) system call.
 

RETURN VALUE

The explain_snprintf_or_die function only returns on success, see snprintf(3) for more information. On failure, prints an explanation and exits, it does not return.

The explain_snprintf_on_error function always returns the value return by the wrapped snprintf(3) system call.  

EXAMPLE

The explain_snprintf_or_die function is intended to be used in a fashion similar to the following example:
int result = explain_snprintf_or_die(data, data_size, format);
 

SEE ALSO

snprintf(3)
formatted output conversion
explain_snprintf(3)
explain snprintf(3) errors
exit(2)
terminate the calling process
 

COPYRIGHT

libexplain version 0.37
Copyright (C) 2010 Peter Miller


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
SEE ALSO
COPYRIGHT

This document was created by man2html, using the manual pages.
Time: 21:45:52 GMT, April 16, 2011