explain_putw_or_die(3) - Linux man page
Name
explain_putw_or_die - output a word (int) and report errors
Synopsis
#include <libexplain/putw.h>
void explain_putw_or_die(int value, FILE *fp);
int explain_putw_on_error(int value, FILE *fp);
Description
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.
Example
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);
See Also
- putw(3)
output a word (int)
- explain_putw(3)
- explain putw(3) errors
- exit(2)
terminate the calling process
Copyright
libexplain version 0.52
Copyright © 2010 Peter Miller