1994-05-27 05:00:24 +00:00
|
|
|
.\" Copyright (c) 1991, 1993
|
|
|
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
|
|
|
.\" the American National Standards Committee X3, on Information
|
|
|
|
|
.\" Processing Systems.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
|
.\" are met:
|
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
|
.\" 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.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
.\" LIABILITY, 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.
|
|
|
|
|
.\"
|
|
|
|
|
.\" @(#)isxdigit.3 8.1 (Berkeley) 6/4/93
|
1999-08-28 00:22:10 +00:00
|
|
|
.\" $FreeBSD$
|
1994-05-27 05:00:24 +00:00
|
|
|
.\"
|
|
|
|
|
.Dd June 4, 1993
|
|
|
|
|
.Dt ISXDIGIT 3
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm isxdigit
|
|
|
|
|
.Nd hexadecimal-digit character test
|
2000-04-21 09:42:15 +00:00
|
|
|
.Sh LIBRARY
|
|
|
|
|
.Lb libc
|
1994-05-27 05:00:24 +00:00
|
|
|
.Sh SYNOPSIS
|
2001-10-01 16:09:29 +00:00
|
|
|
.In ctype.h
|
1994-05-27 05:00:24 +00:00
|
|
|
.Ft int
|
1997-04-13 12:55:36 +00:00
|
|
|
.Fn isxdigit "int c"
|
1994-05-27 05:00:24 +00:00
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
The
|
|
|
|
|
.Fn isxdigit
|
|
|
|
|
function tests for any hexadecimal-digit character.
|
2000-04-11 14:41:37 +00:00
|
|
|
For single C
|
|
|
|
|
.Va char Ns s
|
2000-04-12 18:38:30 +00:00
|
|
|
locales (see
|
|
|
|
|
.Xr multibyte 3 )
|
|
|
|
|
the value of the argument is
|
2000-04-11 14:41:37 +00:00
|
|
|
representable as an
|
2000-04-12 18:38:30 +00:00
|
|
|
.Li unsigned char
|
2000-04-11 14:41:37 +00:00
|
|
|
or the value of
|
|
|
|
|
.Dv EOF .
|
2000-01-19 16:21:05 +00:00
|
|
|
In the ASCII character set, this includes the following characters
|
|
|
|
|
(with their numeric values shown in octal):
|
1997-01-31 00:25:12 +00:00
|
|
|
.Pp
|
1994-05-27 05:00:24 +00:00
|
|
|
.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__
|
2000-12-29 14:08:20 +00:00
|
|
|
.It "\&060\ ``0'' \t061\ ``1'' \t062\ ``2'' \t063\ ``3'' \t064\ ``4''"
|
|
|
|
|
.It "\&065\ ``5'' \t066\ ``6'' \t067\ ``7'' \t070\ ``8'' \t071\ ``9''"
|
|
|
|
|
.It "\&101\ ``A'' \t102\ ``B'' \t103\ ``C'' \t104\ ``D'' \t105\ ``E''"
|
|
|
|
|
.It "\&106\ ``F'' \t141\ ``a'' \t142\ ``b'' \t143\ ``c'' \t144\ ``d''"
|
|
|
|
|
.It "\&145\ ``e'' \t146\ ``f''"
|
1994-05-27 05:00:24 +00:00
|
|
|
.El
|
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
|
The
|
|
|
|
|
.Fn isxdigit
|
|
|
|
|
function returns zero if the character tests false and
|
|
|
|
|
returns non-zero if the character tests true.
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr ctype 3 ,
|
2000-04-11 14:41:37 +00:00
|
|
|
.Xr multibyte 3 ,
|
1994-05-27 05:00:24 +00:00
|
|
|
.Xr ascii 7
|
|
|
|
|
.Sh STANDARDS
|
|
|
|
|
The
|
|
|
|
|
.Fn isxdigit
|
|
|
|
|
function conforms to
|
2001-02-26 13:23:47 +00:00
|
|
|
.St -isoC .
|
