Libc-1082.50.1.tar.gz

[apple/libc.git] / locale / FreeBSD / isxdigit.3

diff --git a/locale/FreeBSD/isxdigit.3 b/locale/FreeBSD/isxdigit.3
index 95208264fc250e541b64a7f029450a5c8cb09416..b1c2faad65c1691a2fb0976e2c425ee4e33ff4fb 100644 (file)
--- a/locale/FreeBSD/isxdigit.3
+++ b/locale/FreeBSD/isxdigit.3
@@ -13,10 +13,6 @@
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"    This product includes software developed by the University of
-.\"    California, Berkeley and its contributors.
 .\" 4. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
@@ -34,9 +30,9 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)isxdigit.3 8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/locale/isxdigit.3,v 1.16 2002/10/06 10:15:38 tjr Exp $
+.\" $FreeBSD: src/lib/libc/locale/isxdigit.3,v 1.25 2009/09/04 07:44:58 des Exp $
 .\"
-.Dd October 6, 2002
+.Dd July 17, 2005
 .Dt ISXDIGIT 3
 .Os
 .Sh NAME
@@ -54,7 +50,7 @@
 The
 .Fn isxdigit
 function tests for any hexadecimal-digit character.
-For any locale, this includes the following characters only:
+Regardless of locale, this includes the following characters only:
 .Pp
 .Bl -column \&``0''______ \&``0''______ \&``0''______ \&``0''______ \&``0''______
 .It "\&``0''\t``1''\t``2''\t``3''\t``4''"
@@ -64,13 +60,15 @@ For any locale, this includes the following characters only:
 .It "\&``e''\t``f''"
 .El
 .Pp
-For single C
-.Va char Ns s
-locales (see
-.Xr multibyte 3 )
-the value of the argument is
-representable as an
-.Li unsigned char
+The
+.Fn ishexnumber
+function behaves similarly to
+.Fn isxdigit ,
+but may recognize additional characters,
+depending on the current locale setting.
+.Pp
+The value of the argument must be representable as an
+.Vt "unsigned char"
 or the value of
 .Dv EOF .
 .Sh RETURN VALUES
@@ -79,27 +77,27 @@ The
 function returns zero if the character tests false and
 returns non-zero if the character tests true.
 .Sh COMPATIBILITY
-Although
-.Fn isxdigit
-and
-.Fn ishexnumber
-accept arguments outside of the range of the
-.Vt "unsigned char"
-type in locales with large character sets,
-this is a
+The
 .Bx 4.4
-extension and the
-.Fn isxwdigit
-and
-.Fn iswhexnumber
-functions should be used instead for maximum portability.
+extension of accepting arguments outside of the range of the
+.Vt "unsigned char"
+type in locales with large character sets is considered obsolete
+and may not be supported in future releases.
+The
+.Fn iswxdigit
+function should be used instead.
 .Sh SEE ALSO
 .Xr ctype 3 ,
+.Xr isalnum_l 3 ,
 .Xr iswxdigit 3 ,
-.Xr multibyte 3 ,
 .Xr ascii 7
 .Sh STANDARDS
 The
 .Fn isxdigit
 function conforms to
 .St -isoC .
+.Sh HISTORY
+The
+.Fn ishexnumber
+function appeared in
+.Bx 4.4 .