NAME¶

valloc - page-aligned memory allocation

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

#include <stdlib.h>

[[deprecated]] void *valloc(size_t size);

valloc():

    Since glibc 2.12:


        (_XOPEN_SOURCE >= 500) && !(_POSIX_C_SOURCE >= 200112L)


            || /* glibc >= 2.19: */ _DEFAULT_SOURCE


            || /* glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE


    Before glibc 2.12:


        _BSD_SOURCE || _XOPEN_SOURCE >= 500

DESCRIPTION¶

valloc() allocates size bytes and returns a pointer to the allocated memory. The memory address will be a multiple of the page size.

It is equivalent to memalign(sysconf(_SC_PAGESIZE),size).

ATTRIBUTES¶

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

VERSIONS¶

According to SUSv2, valloc() is declared in <stdlib.h>. glibc declares it in <malloc.h>, and also in <stdlib.h> if suitable feature test macros are defined (see above).

STANDARDS¶

BSD, GNU.

HISTORY¶

glibc 2.0. 3.0BSD. Documented as obsolete in 4.3BSD, and as legacy in SUSv2.

CAVEATS¶

See memalign(3).

SEE ALSO¶

memalign(3)