explain_calloc_or_die − Allocate and clear memory and report errors
#include <libexplain/calloc.h>
void *explain_calloc_or_die(size_t nmemb, size_t size);
void *explain_calloc_on_error(size_t nmemb, size_t size);
The explain_calloc_or_die function is used to call the calloc(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_calloc(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_calloc_on_error function is used to call the calloc(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_calloc(3) function, but still returns to the caller.
nmemb |
The nmemb, exactly as to be passed to the calloc(3) system call. |
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size |
The size, exactly as to be passed to the calloc(3) system call. |
The explain_calloc_or_die function only returns on success, see calloc(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_calloc_on_error function always returns the value return by the wrapped calloc(3) system call.
The explain_calloc_or_die function is intended to be used in a fashion similar to the following example:
void *result = explain_calloc_or_die(nmemb, size);
Allocate and clear memory
explain calloc(3) errors
terminate the calling process |
libexplain version 1.4
Copyright (C) 2010 Peter Miller