1 files changed, 15 insertions, 4 deletions
diff --git a/src/lib/libc/stdlib/labs.3 b/src/lib/libc/stdlib/labs.3
index 37a20b42f3..f3fd6fd528 100644
--- a/src/lib/libc/stdlib/labs.3
+++ b/src/lib/libc/stdlib/labs.3
@@ -29,9 +29,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: labs.3,v 1.16 2017/08/01 14:57:02 schwarze Exp $
+.\"     $OpenBSD: labs.3,v 1.17 2019/01/18 07:32:17 schwarze Exp $
 .\"
-.Dd $Mdocdate: August 1 2017 $
+.Dd $Mdocdate: January 18 2019 $
 .Dt LABS 3
 .Os
 .Sh NAME
@@ -40,6 +40,7 @@
 .Nm qabs
 .Nd return the absolute value of a long integer
 .Sh SYNOPSIS
+.In limits.h
 .In stdlib.h
 .Ft long
 .Fn labs "long i"
@@ -73,5 +74,15 @@ and
 .Fn llabs
 functions conform to
 .St -isoC-99 .
-.Sh BUGS
+.Sh CAVEATS
-The absolute value of the most negative integer remains negative.
+The results of applying
+.Fn labs
+to
+.Dv LONG_MIN
+and
+.Fn llabs
+to
+.Dv LLONG_MIN
+are undefined, and
+.Fn qabs
+is not portable in the first place.

diff --git a/src/lib/libc/stdlib/labs.3 b/src/lib/libc/stdlib/labs.3 index 37a20b42f3..f3fd6fd528 100644 --- a/src/lib/libc/stdlib/labs.3 +++ b/src/lib/libc/stdlib/labs.3
@@ -29,9 +29,9 @@
29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30	.\" SUCH DAMAGE.	30	.\" SUCH DAMAGE.
31	.\"	31	.\"
32	.\" $OpenBSD: labs.3,v 1.16 2017/08/01 14:57:02 schwarze Exp $	32	.\" $OpenBSD: labs.3,v 1.17 2019/01/18 07:32:17 schwarze Exp $
33	.\"	33	.\"
34	.Dd $Mdocdate: August 1 2017 $	34	.Dd $Mdocdate: January 18 2019 $
35	.Dt LABS 3	35	.Dt LABS 3
36	.Os	36	.Os
37	.Sh NAME	37	.Sh NAME
@@ -40,6 +40,7 @@
40	.Nm qabs	40	.Nm qabs
41	.Nd return the absolute value of a long integer	41	.Nd return the absolute value of a long integer
42	.Sh SYNOPSIS	42	.Sh SYNOPSIS
		43	.In limits.h
43	.In stdlib.h	44	.In stdlib.h
44	.Ft long	45	.Ft long
45	.Fn labs "long i"	46	.Fn labs "long i"
@@ -73,5 +74,15 @@ and
73	.Fn llabs	74	.Fn llabs
74	functions conform to	75	functions conform to
75	.St -isoC-99 .	76	.St -isoC-99 .
76	.Sh BUGS	77	.Sh CAVEATS
77	The absolute value of the most negative integer remains negative.	78	The results of applying
		79	.Fn labs
		80	to
		81	.Dv LONG_MIN
		82	and
		83	.Fn llabs
		84	to
		85	.Dv LLONG_MIN
		86	are undefined, and
		87	.Fn qabs
		88	is not portable in the first place.