memalign()

Allocate aligned memory

Synopsis:

#include <malloc.h>

void *memalign( size_t alignment,
                size_t size );

Since:

BlackBerry 10.0.0

Arguments:

alignment
The alignment that you want to use for the memory. This must be a multiple of size( void *).
size
The amount of memory you want to allocate, in bytes.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The memalign() function allocates size bytes aligned on a boundary specified by alignment.

Because the malloc() implementation uses signed, 32-bit integers to represent the size internally, you can't allocate more than 2 GB in a single allocation. If the size is greater than 2 GB, memalign() indicates an error of ENOMEM.

Returns:

A pointer to the allocated block, or NULL if an error occurred ( errno is set).

Errors:

EINVAL
The value of alignment isn't a multiple of size(void *).
ENOMEM
There's insufficient memory available with the requested alignment.

Classification:

QNX Neutrino

Safety:  
Cancellation point No
Interrupt handler No
Signal handler Yes
Thread Yes

Last modified: 2014-06-24



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