diff options
Diffstat (limited to 'lib/libc/stdlib/malloc.3')
| -rw-r--r-- | lib/libc/stdlib/malloc.3 | 31 |
1 files changed, 4 insertions, 27 deletions
diff --git a/lib/libc/stdlib/malloc.3 b/lib/libc/stdlib/malloc.3 index c1776f61cb8..c0472ee2b93 100644 --- a/lib/libc/stdlib/malloc.3 +++ b/lib/libc/stdlib/malloc.3 @@ -30,9 +30,9 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $OpenBSD: malloc.3,v 1.119 2018/11/18 16:15:18 otto Exp $ +.\" $OpenBSD: malloc.3,v 1.120 2018/11/21 06:57:04 otto Exp $ .\" -.Dd $Mdocdate: November 18 2018 $ +.Dd $Mdocdate: November 21 2018 $ .Dt MALLOC 3 .Os .Sh NAME @@ -43,8 +43,7 @@ .Nm reallocarray , .Nm recallocarray , .Nm freezero , -.Nm aligned_alloc , -.Nm malloc_usable_size +.Nm aligned_alloc .Nd memory allocation and deallocation .Sh SYNOPSIS .In stdlib.h @@ -65,7 +64,6 @@ .Ft void * .Fn aligned_alloc "size_t alignment" "size_t size" .Ft size_t -.Fn malloc_usable_size "void *ptr" .Vt char *malloc_options ; .Sh DESCRIPTION The standard functions @@ -236,25 +234,6 @@ If is not a multiple of .Fa alignment , behavior is undefined. -.Pp -The -.Fn malloc_usable_size -function returns the actual size of the allocated memory pointed to by -.Va ptr . -If -.Va ptr -is -.Dv NULL , -it returns 0. -If -.Va ptr -was never returned by an allocation function or freed before, -the behavior is undefined. -This function should not be relied upon since it exposes some of the internal -workings of the -.Fn malloc -family of functions. -Writing beyond the requested size introduces undefined behavior. .Sh RETURN VALUES Upon successful completion, the allocation functions return a pointer to the allocated space; otherwise, @@ -640,9 +619,7 @@ function appeared in .Ox 6.2 . The .Fn aligned_alloc -and -.Fn malloc_usable_size -functions appeared in +function appeared in .Ox 6.5 . .Sh CAVEATS When using |