| explain_fseek_or_die(3) | Library Functions Manual | explain_fseek_or_die(3) |
explain_fseek_or_die - reposition a stream and report errors
#include <libexplain/fseek.h>
void explain_fseek_or_die(FILE *fp, long offset, int whence);
int explain_fseek_on_error(FILE *fp, long offset, int whence);
The explain_fseek_or_die function is used to call the fseek(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fseek(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_fseek_on_error function is used to call the fseek(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fseek(3) function, but still returns to the caller.
The explain_fseek_or_die function only returns on success, see fseek(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_fseek_on_error function always returns the value return by the wrapped fseek(3) system call.
The explain_fseek_or_die function is intended to be used in a fashion similar to the following example:
explain_fseek_or_die(fp, offset, whence);
libexplain version 1.4
Copyright (C) 2010 Peter Miller