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 (C) 2010 Peter Miller
