usr/src/lib/libc/locale/ctype.3

.\" Copyright (c) 1991 Regents of the University of California.
.\" All rights reserved.
.\"
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)ctype.3     6.6 (Berkeley) %G%
.\"
.Dd
.Dt CTYPE 3
.Os
.Sh NAME
.Nm isalnum ,
.Nm isalpha ,
.Nm isascii ,
.Nm isblank ,
.Nm iscntrl ,
.Nm isdigit ,
.Nm isgraph ,
.Nm islower ,
.Nm isprint ,
.Nm ispunct ,
.Nm isspace ,
.Nm isupper ,
.Nm isxdigit ,
.Nm toascii
.Nm tolower ,
.Nm toupper ,
.Nd character classification macros
.Sh SYNOPSIS
.Fd #include <ctype.h>
.Fa int c
.br
.Fn isalnum c
.Fn isalpha c
.Fn isascii c
.Fn iscntrl c
.Fn isdigit c
.Fn isgraph c
.Fn islower c
.Fn isprint c
.Fn ispunct c
.Fn isspace c
.Fn isupper c
.Fn isxdigit c
.Fn toascii c
.Fn tolower c
.Fn toupper c
.Sh DESCRIPTION
The above fucntions perform character tests and conversions on the integer
.Ar c .
They are available as macros, defined in the include file <ctype.h>, and
as true functions in the C library.
See the specific manual pages for more information.
.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 isupper 3 ,
.Xr isxdigit 3 ,
.Xr toascii 3 ,
.Xr tolower 3 ,
.Xr toupper 3 ,
.Xr ascii 7
.Sh STANDARDS
These functions, except for
.Fn isblank ,
.Fn toupper ,
.Fn tolower
and
.Fn toascii ,
conform to
.St -ansiC .