alloca

Syntax

#include <stdlib.h> void *alloca(size_t _size)

Description

Allocate memory that will be automatically released when the current procedure exits. Note that, when compiling with gcc, alloca is a built-in function and not a library call.

Return Value

A pointer to the memory, else NULL.

Portability

ANSI/ISO C	No
POSIX	No

Example

q = alloca(strlen(x)+1); strcpy(q, x);