memalign()

Updated: October 26, 2022

Allocate aligned memory

Synopsis:

#include <malloc.h>

void *memalign( size_t alignment,
                size_t size );

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.

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 *), or it's greater than the value of the MALLOC_MAX_ALIGNMENT environment variable or the MALLOC_MAX_ALIGNMENT command to mallopt().
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