explain_fgetc_or_die(3)

input of characters and report errors

Section 3 libexplain-dev bookworm source

Description

explain_fgetc_or_die

NAME

explain_fgetc_or_die - input of characters and report errors

SYNOPSIS

#include <libexplain/fgetc.h>
int explain_fgetc_or_die(FILE *fp);

DESCRIPTION

The explain_fgetc_or_die function is used to call the fgetc(3) system call. On failure an explanation will be printed to stderr, obtained from explain_fgetc(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:

int c = explain_fgetc_or_die(fp);

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

Returns:

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