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1 .\" $NetBSD: iswalnum.3,v 1.5 2002/07/10 14:46:10 yamt Exp $
2 .\"
3 .\" Copyright (c) 1991 The Regents of the University of California.
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5 .\"
6 .\" This code is derived from software contributed to Berkeley by
7 .\" the American National Standards Committee X3, on Information
8 .\" Processing Systems.
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34 .\" @(#)isalnum.3 5.2 (Berkeley) 6/29/91
35 .\" $FreeBSD: src/lib/libc/locale/iswalnum.3,v 1.6 2007/01/09 00:28:00 imp Exp $
36 .\"
37 .Dd October 3, 2002
38 .Dt ISWALNUM 3
39 .Os
40 .Sh NAME
41 .Nm iswalnum ,
42 .Nm iswalpha ,
43 .Nm iswascii ,
44 .Nm iswblank ,
45 .Nm iswcntrl ,
46 .Nm iswdigit ,
47 .Nm iswgraph ,
48 .Nm iswhexnumber ,
49 .Nm iswideogram ,
50 .Nm iswlower ,
51 .Nm iswnumber ,
52 .Nm iswphonogram ,
53 .Nm iswprint ,
54 .Nm iswpunct ,
55 .Nm iswrune ,
56 .Nm iswspace ,
57 .Nm iswspecial ,
58 .Nm iswupper ,
59 .Nm iswxdigit
60 .Nd wide character classification utilities
61 .Sh LIBRARY
62 .Lb libc
63 .Sh SYNOPSIS
64 .In wctype.h
65 .Ft int
66 .Fn iswalnum "wint_t wc"
67 .Ft int
68 .Fn iswalpha "wint_t wc"
69 .Ft int
70 .Fn iswascii "wint_t wc"
71 .Ft int
72 .Fn iswblank "wint_t wc"
73 .Ft int
74 .Fn iswcntrl "wint_t wc"
75 .Ft int
76 .Fn iswdigit "wint_t wc"
77 .Ft int
78 .Fn iswgraph "wint_t wc"
79 .Ft int
80 .Fn iswhexnumber "wint_t wc"
81 .Ft int
82 .Fn iswideogram "wint_t wc"
83 .Ft int
84 .Fn iswlower "wint_t wc"
85 .Ft int
86 .Fn iswnumber "wint_t wc"
87 .Ft int
88 .Fn iswphonogram "wint_t wc"
89 .Ft int
90 .Fn iswprint "wint_t wc"
91 .Ft int
92 .Fn iswpunct "wint_t wc"
93 .Ft int
94 .Fn iswrune "wint_t wc"
95 .Ft int
96 .Fn iswspace "wint_t wc"
97 .Ft int
98 .Fn iswspecial "wint_t wc"
99 .Ft int
100 .Fn iswupper "wint_t wc"
101 .Ft int
102 .Fn iswxdigit "wint_t wc"
103 .Sh DESCRIPTION
104 The above functions are character classification utility functions,
105 for use with wide characters
106 .Vt ( wchar_t
107 or
108 .Vt wint_t ) .
109 See the description for the similarly-named single byte classification
110 functions (such as
111 .Xr isalnum 3 ) ,
112 for details.
113 .Pp
114 Extended locale versions of these functions are documented in
115 .Xr iswalnum_l 3 .
116 See
117 .Xr xlocale 3
118 for more information.
119 .Sh RETURN VALUES
120 The functions return zero if the character tests false and
121 return non-zero if the character tests true.
122 .Sh SEE ALSO
123 .Xr isalnum 3 ,
124 .Xr isalpha 3 ,
125 .Xr isascii 3 ,
126 .Xr isblank 3 ,
127 .Xr iscntrl 3 ,
128 .Xr isdigit 3 ,
129 .Xr isgraph 3 ,
130 .Xr ishexnumber 3 ,
131 .Xr isideogram 3 ,
132 .Xr islower 3 ,
133 .Xr isnumber 3 ,
134 .Xr isphonogram 3 ,
135 .Xr isprint 3 ,
136 .Xr ispunct 3 ,
137 .Xr isrune 3 ,
138 .Xr isspace 3 ,
139 .Xr isspecial 3 ,
140 .Xr isupper 3 ,
141 .Xr iswalnum_l 3 ,
142 .Xr isxdigit 3 ,
143 .Xr wctype 3
144 .Sh STANDARDS
145 These functions conform to
146 .St -p1003.1-2001 ,
147 except
148 .Fn iswascii ,
149 .Fn iswhexnumber ,
150 .Fn iswideogram ,
151 .Fn iswnumber ,
152 .Fn iswphonogram ,
153 .Fn iswrune ,
154 and
155 .Fn iswspecial ,
156 which are
157 .Fx
158 extensions.
159 .Sh CAVEATS
160 The result of these functions is undefined unless
161 the argument is
162 .Dv WEOF
163 or a valid
164 .Vt wchar_t
165 value for the current locale.