explain_putw_or_die3
Output a word (int) and report errors
Usage
#include <libexplain/putw.h>
void explain_putw_or_die(int value, FILE *fp);
int explain_putw_on_error(int value, FILE *fp);
Overview
The explain_putw_or_die function is used to call the putw(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_putw(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_putw_on_error function is used to call the putw(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_putw(3) function, but still returns to the caller.
value
|
The value, exactly as to be passed to the putw(3) system call. |
|---|---|
fp
|
The fp, exactly as to be passed to the putw(3) system call. |
Return value
The explain_putw_or_die function only returns on success, see putw(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_putw_on_error function always returns the value return by the wrapped putw(3) system call.
Examples
The explain_putw_or_die function is intended to be used in a fashion similar to the following example:
explain_putw_or_die(value, fp);Releases
6 releases since Debian 7 (Wheezy); the text changed 1 time.