Provided by: libexplain-dev_1.4.D001-8_amd64
explain_fpurge_or_die - purge a stream and report errors
#include <libexplain/fpurge.h> void explain_fpurge_or_die(FILE *fp); int explain_fpurge_on_error(FILE *fp);
The explain_fpurge_or_die function is used to call the fpurge(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fpurge(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_fpurge_on_error function is used to call the fpurge(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fpurge(3) function, but still returns to the caller. fp The fp, exactly as to be passed to the fpurge(3) system call.
The explain_fpurge_or_die function only returns on success, see fpurge(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_fpurge_on_error function always returns the value return by the wrapped fpurge(3) system call.
The explain_fpurge_or_die function is intended to be used in a fashion similar to the following example: explain_fpurge_or_die(fp);
fpurge(3) purge a stream explain_fpurge(3) explain fpurge(3) errors exit(2) terminate the calling process
libexplain version 1.4 Copyright (C) 2010 Peter Miller explain_fpurge_or_die(3)