valloc - page-aligned memory allocation
Standard C library (libc, -lc)
#include <stdlib.h>
[[deprecated]] void *valloc(size_t size);Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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 >= 500valloc() 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).
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
valloc() |
Thread safety | MT-Unsafe init |
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).
BSD, GNU.
glibc 2.0. 3.0BSD. Documented as obsolete in 4.3BSD, and as legacy in SUSv2.
See memalign(3).
memalign(3)