Name

valloc − aligned memory allocator

Syntax

#include <stdlib.h>

void *valloc(size)
size_t size;

Description

The valloc subroutine allocates size bytes aligned on a page boundary.  It is implemented by calling malloc() with a slightly larger request, saving the true beginning of the block allocated, and returning a properly aligned pointer.

Diagnostics

The valloc subroutine returns a null pointer (0) if there is no available memory or if the arena has been detectably corrupted by storing outside the bounds of a block. The valloc subroutine will fail and no additional memory will be allocated if one of the following is true:

[ENOMEM] The limit, as set by setrlimit(,), is exceeded.

[ENOMEM] The maximum possible size of a data segment (compiled into the system) is exceeded. 

[ENOMEM] Insufficient space exists in the swap area to support the expansion.