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| explain_putw_or_die(3) | FreeBSD Library Functions Manual | explain_putw_or_die(3) |
NAME
explain_putw_or_die - output a word (int) and report errorsSYNOPSIS
#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 1.3Copyright (C) 2010 Peter Miller
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