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OpenSolaris 2009.06 - man page for posix_memalign (opensolaris section 3c)

posix_memalign(3C)					   Standard C Library Functions 					posix_memalign(3C)

NAME
posix_memalign - aligned memory allocation
SYNOPSIS
#include <sys/mman.h> int posix_memalign(void **memptr, size_t alignment, size_t size);
DESCRIPTION
The posix_memalign() function allocates size bytes aligned on a boundary specified by alignment, and returns a pointer to the allocated memory in memptr. The value of alignment must be a power of two multiple of sizeof(void *). Upon successful completion, the value pointed to by memptr will be a multiple of alignment. If the size of the space requested is 0, the value returned in memptr will be a null pointer. The free(3C) function will deallocate memory that has previously been allocated by posix_memalign().
RETURN VALUES
Upon successful completion, posix_memalign() returns zero. Otherwise, an error number is returned to indicate the error.
ERRORS
The posix_memalign() function will fail if: EINVAL The value of the alignment parameter is not a power of two multiple of sizeof(void *). ENOMEM There is insufficient memory available with the requested alignment.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ |Standard |See standards(5). | +-----------------------------+-----------------------------+
SEE ALSO
free(3C), malloc(3C), memalign(3C), attributes(5), standards(5) SunOS 5.11 14 Jul 2008 posix_memalign(3C)

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