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authorderaadt <deraadt@openbsd.org>1995-10-18 08:37:01 +0000
committerderaadt <deraadt@openbsd.org>1995-10-18 08:37:01 +0000
commitdf930be708d50e9715f173caa26ffe1b7599b157 (patch)
treeaa317e49e28cb999c9cf3db7f00c20903fe6010a /lib/libc/gen/isupper.3
downloadwireguard-openbsd-df930be708d50e9715f173caa26ffe1b7599b157.tar.xz
wireguard-openbsd-df930be708d50e9715f173caa26ffe1b7599b157.zip
initial import of NetBSD tree
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+.\" $NetBSD: isupper.3,v 1.5 1995/02/27 04:35:09 cgd Exp $
+.\"
+.\" Copyright (c) 1991 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.
+.\"
+.\" @(#)isupper.3 5.2 (Berkeley) 6/29/91
+.\"
+.Dd June 29, 1991
+.Dt ISUPPER 3
+.Os
+.Sh NAME
+.Nm isupper
+.Nd upper-case character test
+.Sh SYNOPSIS
+.Fd #include <ctype.h>
+.Ft int
+.Fn isupper "int c"
+.Sh DESCRIPTION
+The
+.Fn isupper
+function tests for any upper-case letter or any of an
+implementation-defined set of characters for which none of
+.Xr iscntrl 3 ,
+.Xr isdigit 3 ,
+.Xr ispunct 3 ,
+or
+.Xr isspace 3
+is true.
+In the
+.Em ``C''
+locale,
+.Fn isupper
+returns true only for the characters defined as upper-case letters.
+.Sh RETURN VALUES
+The
+.Fn isupper
+macro returns zero if the character tests false and
+returns non-zero if the character tests true.
+.Sh SEE ALSO
+.Xr isalnum 3 ,
+.Xr isalpha 3 ,
+.Xr isascii 3 ,
+.Xr isblank 3 ,
+.Xr iscntrl 3 ,
+.Xr isdigit 3 ,
+.Xr isgraph 3 ,
+.Xr islower 3 ,
+.Xr isprint 3 ,
+.Xr ispunct 3 ,
+.Xr isspace 3 ,
+.Xr isxdigit 3 ,
+.Xr toascii 3 ,
+.Xr tolower 3 ,
+.Xr toupper 3 ,
+.Xr stdio 3 ,
+.Xr ascii 7
+.Sh STANDARDS
+The
+.Xr isupper
+function conforms to
+.St -ansiC .