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NetBSD 6.1.5 - man page for posix_memalign (netbsd section 3)

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POSIX_MEMALIGN(3)		   BSD Library Functions Manual 		POSIX_MEMALIGN(3)

NAME
     posix_memalign -- aligned memory allocation

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <stdlib.h>

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

DESCRIPTION
     The posix_memalign() function allocates size bytes of memory such that the allocation's base
     address is an even 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).

RETURN VALUES
     The posix_memalign() function returns the value 0 if successful; otherwise it returns an
     error value.

ERRORS
     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.

SEE ALSO
     free(3), malloc(3), realloc(3), valloc(3)

STANDARDS
     The posix_memalign() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

BSD					November 19, 2007				      BSD
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