[src/trunk]: src/lib/libc/stdlib reallocarr(3): Bump date. Note overflow is ...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/32bf2e30b2d5
branches:  trunk
changeset: 369775:32bf2e30b2d5
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Wed Aug 31 12:17:14 2022 +0000

description:
reallocarr(3): Bump date.  Note overflow is handled internally.

diffstat:

 lib/libc/stdlib/reallocarr.3 |  18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)

diffs (39 lines):

diff -r 7a1e20ac6278 -r 32bf2e30b2d5 lib/libc/stdlib/reallocarr.3
--- a/lib/libc/stdlib/reallocarr.3      Wed Aug 31 12:10:05 2022 +0000
+++ b/lib/libc/stdlib/reallocarr.3      Wed Aug 31 12:17:14 2022 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: reallocarr.3,v 1.5 2022/08/31 12:10:05 riastradh Exp $
+.\"    $NetBSD: reallocarr.3,v 1.6 2022/08/31 12:17:14 riastradh Exp $
 .\"
 .\" Copyright (c) 2015 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -26,7 +26,7 @@
 .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
-.Dd February 19, 2015
+.Dd August 31, 2022
 .Dt REALLOCARR 3
 .Os
 .Sh NAME
@@ -100,6 +100,20 @@
 .Fa ptr
 to null.
 .Pp
+Like
+.Xr calloc 3 ,
+.Nm
+fails gracefully if the product of
+.Fa number
+and
+.Fa size
+would overflow the representable size of memory.
+Unlike
+.Xr calloc 3 ,
+new memory allocated by
+.Nm
+is not zero-initialized.
+.Pp
 The
 .Nm
 function may alter