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| explain_fread_or_die(3) | FreeBSD Library Functions Manual | explain_fread_or_die(3) |
NAME
explain_fread_or_die - binary stream input and report errorsSYNOPSIS
#include <libexplain/fread.h>void explain_fread_or_die(void *ptr, size_t size, size_t nmemb, FILE *fp);
DESCRIPTION
The explain_fread_or_die function is used to call the fread(3) system call. On failure an explanation will be printed to stderr, obtained from explain_fread(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:
size_t how_many = explain_fread_or_die(ptr, size, nmemb, fp);
- ptr
- The ptr, exactly as to be passed to the fread(3) system call.
- size
- The size, exactly as to be passed to the fread(3) system call.
- nmemb
- The nmemb, exactly as to be passed to the fread(3) system call.
- fp
- The fp, exactly as to be passed to the fread(3) system call.
- Returns:
- This function only returns on success, the number read or 0 on end‐of‐input. On failure, prints an explanation and exits.
SEE ALSO
- fread(3)
- binary stream input
- explain_fread(3)
- explain fread(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT
libexplain version 1.3Copyright (C) 2008 Peter Miller
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