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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 re- turns 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), reallocf(3), and free(3). RETURN VALUES The posix_memalign() function returns the value 0 if successful; other- wise 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), reallocf(3), valloc(3) STANDARDS The posix_memalign() function conforms to IEEE Std 1003.1-2001 ("POSIX.1"). HISTORY The posix_memalign() function first appeared in FreeBSD 7.0. BSD January 11, 2006 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS | HISTORY
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