explain_fputc_or_die(3)

output of characters and report errors

Section 3 libexplain-dev bookworm source

Description

explain_fputc_or_die

NAME

explain_fputc_or_die - output of characters and report errors

SYNOPSIS

#include <libexplain/fputc.h>
void explain_fputc_or_die(int c, FILE *fp);

DESCRIPTION

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

This function is intended to be used in a fashion similar to the following example:

explain_fputc_or_die(c, fp);

	c		The c, exactly as to be passed to the fputc(3) system call.
	fp		The fp, exactly as to be passed to the fputc(3) system call.

Returns:

This function only returns on success. On failure, prints an explanation and exits.