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Man Pages
explain_feof_or_die(3) FreeBSD Library Functions Manual explain_feof_or_die(3)

explain_feof_or_die - check and reset stream status and report errors

#include <libexplain/feof.h>

void explain_feof_or_die(FILE *fp);
int explain_feof_on_error(FILE *fp);

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

The explain_feof_on_error function is used to call the feof(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_feof(3) function, but still returns to the caller.

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

The explain_feof_or_die function only returns on success, see feof(3) for more information. On failure, prints an explanation and exits, it does not return.

The explain_feof_on_error function always returns the value return by the wrapped feof(3) system call.

The explain_feof_or_die function is intended to be used in a fashion similar to the following example:
explain_feof_or_die(fp);

feof(3)
check and reset stream status
explain_feof(3)
explain feof(3) errors
exit(2)
terminate the calling process

libexplain version 1.3
Copyright (C) 2010 Peter Miller

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