Release previously allocated memory to heap.

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <stdlib.h>

void free(void *ptr);

Parameters for this facility are:

ptr

void *

A pointer to the allocated memory

The free() function releases a previously allocated memory block, pointed to by ptr, to the heap. The ptr argument should hold an address returned by the memory allocation functions calloc(), malloc(), or realloc(). Once the memory block ptr points to has been released, it is no longer valid. The ptr variable should not be used to reference memory again until it is assigned a value from the memory allocation functions.

"vec_free"

"calloc"

"malloc"

"realloc"

Refer to"Example of calloc() usage." .