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| calloc| Summary | |
#include <stdlib.h>
void far *calloc (
size_t num, /* number of items */
size_t len); /* length of each item */
or
void huge *calloc (
size_t num, /* number of items */
size_t len); /* length of each item */
or
void xhuge *calloc (
size_t num, /* number of items */
size_t len); /* length of each item */
| | Description | | The calloc function allocates memory for an array of num elements. Each element in the array occupies len bytes and is initialized to 0. The total number of bytes of memory allocated is num * len. Note - Before calling this function your program must invoke the init_mempool function to initialize the memory management routines and provides the starting address and size of the memory pool.
- Source code for this routine is provide in the LIB folder. You may modify the source to customize this function for your particular hardware environment.
- Pointer arguments and return values are far in Small, Medium, Compact, and Large Memory Models; huge in HCompact and HLarge Memory Models; and xhuge in the XLarge Memory Model. This function is not supported in the Tiny Memory Model.
| | Return Value | | The calloc function returns a pointer to the allocated memory or a null pointer if the memory allocation request cannot be satisfied. | | See Also | | free, init_mempool, malloc, realloc | | Example | |
#include <stdlib.h>
#include <stdio.h> /* for printf */
void tst_calloc (void) {
int far *p; /* ptr to array of 100 ints */
p = calloc (100, sizeof (int));
if (p == NULL)
printf ("Error allocating array\n");
else
printf ("Array address is %p\n", (void *) p);
}
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