xref: /original-bsd/lib/libc/locale/ctype.3 (revision ba762ddc) 
1.\" Copyright (c) 1991 Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\"
5.\" %sccs.include.redist.man%
6.\"
7.\"     @(#)ctype.3	6.5 (Berkeley) 04/19/91
8.\"
9.Dd
10.Dt CTYPE 3
11.Os
12.Sh NAME
13.Nm isalpha ,
14.Nm isupper ,
15.Nm islower ,
16.Nm isdigit ,
17.Nm isxdigit ,
18.Nm isalnum ,
19.Nm isspace ,
20.Nm ispunct ,
21.Nm isprint ,
22.Nm isgraph ,
23.Nm iscntrl ,
24.Nm isascii ,
25.Nm toupper ,
26.Nm tolower ,
27.Nm toascii
28.Nd character classification macros
29.Sh SYNOPSIS
30.Fd #include <ctype.h>
31.Fa int c
32.br
33.Fn isalpha c
34.Fn isupper c
35.Fn islower c
36.Fn isdigit c
37.Fn isxdigit c
38.Fn isalnum c
39.Fn isspace c
40.Fn ispunct c
41.Fn isprint c
42.Fn isgraph c
43.Fn iscntrl c
44.Fn isascii c
45.Fn toupper c
46.Fn tolower c
47.Fn toascii c
48.Sh DESCRIPTION
49The above macros perform character tests and conversions on the integer
50.Ar c .
51.Pp
52See the specific manual pages for more information.
53.Sh SEE ALSO
54.Xr isalpha 3 ,
55.Xr isupper 3 ,
56.Xr islower 3 ,
57.Xr isdigit 3 ,
58.Xr isxdigit 3 ,
59.Xr isalnum 3 ,
60.Xr isspace 3 ,
61.Xr ispunct 3 ,
62.Xr isprint 3 ,
63.Xr isgraph 3 ,
64.Xr iscntrl 3 ,
65.Xr isascii 3 ,
66.Xr toupper 3 ,
67.Xr tolower 3 ,
68.Xr toascii 3 ,
69.Xr ascii 7
70.Sh STANDARDS
71These functions, except for
72.Fn toupper ,
73.Fn tolower
74and
75.Fn toascii ,
76conform to
77.St -ansiC .
78