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authormaya <maya@NetBSD.org>2017-09-28 15:03:18 +0000
committermaya <maya@NetBSD.org>2017-09-28 15:03:18 +0000
commita80f2c8dde151ccb488ee52d10f30cdd1cb0ce65 (patch)
tree1fe9d717f3945405f48840702e356f4d3385c135 /lib/libm
parent3c6683122a70f1df30e785bbad13ff36226f80cd (diff)
Restore CAVEATS section unmodified.
It apparently refers to VAX and its lack of a negative zero.
Diffstat (limited to 'lib/libm')
-rw-r--r--lib/libm/man/copysign.36
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libm/man/copysign.3 b/lib/libm/man/copysign.3
index 496a8532d53..e8ea10f8b7a 100644
--- a/lib/libm/man/copysign.3
+++ b/lib/libm/man/copysign.3
@@ -1,4 +1,4 @@
-.\" $NetBSD: copysign.3,v 1.3 2017/09/28 11:09:05 maya Exp $
+.\" $NetBSD: copysign.3,v 1.4 2017/09/28 15:03:18 maya Exp $
.\"
.\" Copyright (c) 2011 Jukka Ruohonen <jruohonen@iki.fi>
.\" All rights reserved.
@@ -87,3 +87,7 @@ The described functions conform to
.\"
.\" These functions first appeared in ???.
.\"
+.Sh CAVEATS
+Note that on implementations that represent a signed zero
+but do not treat negative zero consistently in arithmetic operations,
+these functions may regard the sign of zero as positive.