Allocates memory quickly on the stack.

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <malloc.h>

void *alloca(size_t nbytes);

Parameters for this facility are:

nbytes

size_t

The size in bytes of the allocation

This function returns a pointer to a block of memory that is nbytes long. The block is on the function's stack. This function works quickly since it decrements the current stack pointer. When your function exits, it automatically releases the storage.

If you use alloca() to allocate a lot of storage, be sure to increase the Stack Size for your project in the Project preferences panel.

If it is successful, alloca() returns a pointer to a block of memory. If it encounters an error, alloca() returns NULL.

"calloc"

"free"

"malloc"

"realloc")