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The calloc () function shall allocate unused space for an array of nelem elements each of whose size in bytes is elsize. The space shall be initialized to all bits 0. The order and contiguity of storage allocated by successive calls to calloc () is unspecified.
The calloc () function allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory. The memory is set to zero. If nmemb or size is 0, then calloc () returns either NULL, or a unique pointer value that can later be successfully passed to free ().
calloc() allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory. The memory is set to zero. If nmemb or size is 0, then calloc() returns either NULL, or a unique pointer value that can later be successfully passed to free().
Upon successful completion with both nelem and elsize non-zero, calloc () shall return a pointer to the allocated space. If either nelem or elsize is 0, then either: *. A null pointer shall be returned and errno may be set to an implementation-defined value, or. *.
calloc () allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory. The memory is set to zero. If nmemb or size is 0, then calloc () returns either NULL, or a unique pointer value that can later be successfully passed to free ().
The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME calloc — a memory allocator SYNOPSIS #include <stdlib.h> void *calloc(size_t nelem, size_t elsize); DESCRIPTION
21 paź 2017 · One should always use calloc() instead of malloc()+memset(), because it could take advantage of copy-on-write (COW). Some calloc 's are implemented like this: void * calloc(size_t nelem, size_t elsize) { void *p; p = malloc (nelem * elsize); if (p == 0) return (p); bzero (p, nelem * elsize); return (p); }
