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 documented below.

ATTRIBUTES¶

For an explanation of the terms used in this section, see attributes(7).

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 obtained value). The glibc implementation allows memory obtained from memalign() to be reclaimed with free(3).

SEE ALSO¶

aligned_alloc(3)