__malloc24() — Allocate 24-bit storage

Standards

Standards / Extensions	C or C++	Dependencies
	both	AMODE 64

Format

#include <stdlib.h>

void  *__malloc24(size_t size);

General description

Reserves a block of storage of size bytes from "below-the-line" storage (that is, below 16 MB).

Returned value

If successful, __malloc24() returns a pointer to the reserved space. The storage space to which the returned value points is always suitably aligned for storage of any type of object.

If not enough storage is available, or if size was specified as 0, __malloc24() returns NULL. If __malloc24() returns NULL because there is not enough storage, it sets errno to one of the following values:

Error Code: Description
ENOMEM: Insufficient memory is available

Related information

See the topic about using the system programming C facilities in z/OS XL C/C++ Programming Guide.
stdlib.h
calloc() — Reserve and initialize storage
free() — Free a block of storage
malloc() — Reserve storage block
__malloc31() — Allocate 31–bit storage
realloc() — Change reserved storage block size