memalign(3)		    Library Functions Manual		     memalign(3)

NAME
     memalign - allocate aligned memory

LIBRARY
     Standard C library (libc, -lc)

SYNOPSIS
     #include <malloc.h>

     [[deprecated]] void *memalign(size_t alignment, size_t size);

DESCRIPTION
     memalign()	 is equivalent to aligned_alloc(3), except for the CAVEATS docu-
     mented below.

ATTRIBUTES
     For an explanation of the terms used in this  section,  see  attributes(7).
     allbox; lbx lb lb l l l.  Interface Attribute Value T{ memalign()
     T}	  Thread safety	  MT-Safe

VERSIONS
     On some systems memalign() is declared in <stdlib.h> instead of <malloc.h>.

STANDARDS
     None.

HISTORY
     glibc 2.0.	 SunOS 4.1.3.

CAVEATS
     memalign() may not check that the alignment argument is correct.

     Some  systems  provide  no	 way to reclaim memory allocated with memalign()
     (because one can pass to free(3) only a pointer  obtained	from  malloc(3),
     while,  for example, memalign() would call malloc(3) and then align the ob-
     tained value).  The glibc implementation allows memory obtained from  mema-
     lign() to be reclaimed with free(3).

SEE ALSO
     aligned_alloc(3)

Linux man-pages 6.18		   2025-12-13			     memalign(3)