ALLOCA(3) Library Functions Manual ALLOCA(3)

NAME

allocamemory allocator

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <stdlib.h>

void *
alloca(size_t size);

DESCRIPTION

The alloca() function allocates size bytes of space in the stack frame of the caller. This temporary space is automatically freed on return.

RETURN VALUES

The alloca() function returns a pointer to the beginning of the allocated space. If the allocation failed, a NULL pointer is returned.

SEE ALSO

brk(2), calloc(3), getpagesize(3), malloc(3), realloc(3)

CAVEATS

Few limitations can be mentioned:
March 21, 2011 NetBSD 6.1