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authorStefan Sperling <stsp@cvs.openbsd.org>2011-04-29 11:24:25 +0000
committerStefan Sperling <stsp@cvs.openbsd.org>2011-04-29 11:24:25 +0000
commit2f459c4a92065cda8b75678215cb5df1f8a33695 (patch)
treea4095c8d7ea449245b6dea0a46a1da15bda29d6e
parent8d089421403388172fcdf03562f6f0442102b15d (diff)
Add BUGS section explaining that these functions do not cover the entire
Unicode character set in a UTF-8 locale and can therefore return wrong answers.
-rw-r--r--lib/libc/locale/iswalnum.37
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/libc/locale/iswalnum.3 b/lib/libc/locale/iswalnum.3
index 4a0eae2cf85..572cf38b48b 100644
--- a/lib/libc/locale/iswalnum.3
+++ b/lib/libc/locale/iswalnum.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: iswalnum.3,v 1.3 2010/09/10 18:38:19 jmc Exp $
+.\" $OpenBSD: iswalnum.3,v 1.4 2011/04/29 11:24:24 stsp Exp $
.\" $NetBSD: iswalnum.3,v 1.8 2003/09/08 17:54:31 wiz Exp $
.\"
.\" Copyright (c) 1991 The Regents of the University of California.
@@ -34,7 +34,7 @@
.\"
.\" @(#)isalnum.3 5.2 (Berkeley) 6/29/91
.\"
-.Dd $Mdocdate: September 10 2010 $
+.Dd $Mdocdate: April 29 2011 $
.Dt ISWALNUM 3
.Os
.Sh NAME
@@ -115,3 +115,6 @@ The argument to these functions must be
or a valid
.Fa wchar_t
value with the current locale; otherwise, the result is undefined.
+.Sh BUGS
+In a UTF-8 locale these functions return wrong answers for some characters
+because they do not cover the entire Unicode character set.