MirBSD manpage: posix_memalign(3)

POSIX_MEMALIGN(3)          BSD Programmer's Manual           POSIX_MEMALIGN(3)


     posix_memalign - aligned memory allocation


     #include <stdlib.h>

     posix_memalign(void **ptr, size_t alignment, size_t size);


     The posix_memalign() function allocates size bytes of memory such that
     the allocation's base address is a multiple of alignment, and returns the
     allocation in the value pointed to by ptr.

     The requested alignment must be a power of 2 at least as large as
     sizeof(void *).

     Memory that is allocated via posix_memalign() can be used as an argument
     in subsequent calls to realloc(3) and free(3).


     The posix_memalign() function returns the value 0 if successful; other-
     wise it returns an error value.


     The posix_memalign() function will fail if:

     [EINVAL]      The alignment parameter is not a power of 2 at least as
                   large as sizeof(void *).

     [ENOMEM]      Memory allocation error.


     free(3), malloc(3), realloc(3)


     The posix_memalign() function conforms to IEEE Std 1003.1-2001


     The posix_memalign() function first appeared in OpenBSD 4.8.

MirBSD #10-current            December 21, 2012                              1

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