1/* Copyright (C) 1996-2020 Free Software Foundation, Inc. 
2 This file is part of the GNU C Library. 
3 
4 The GNU C Library is free software; you can redistribute it and/or 
5 modify it under the terms of the GNU Lesser General Public 
6 License as published by the Free Software Foundation; either 
7 version 2.1 of the License, or (at your option) any later version. 
8 
9 The GNU C Library is distributed in the hope that it will be useful, 
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
12 Lesser General Public License for more details. 
13 
14 You should have received a copy of the GNU Lesser General Public 
15 License along with the GNU C Library; if not, see 
16 <https://www.gnu.org/licenses/>. */ 
17 
18/* 
19 * ISO C99 Standard: 7.25 
20 * Wide character classification and mapping utilities <wctype.h> 
21 */ 
22 
23#ifndef _BITS_WCTYPE_WCHAR_H 
24#define _BITS_WCTYPE_WCHAR_H 1 
25 
26#if !defined _WCTYPE_H && !defined _WCHAR_H 
27#error "Never include <bits/wctype-wchar.h> directly; include <wctype.h> or <wchar.h> instead." 
28#endif 
29 
30#include <bits/types.h> 
31#include <bits/types/wint_t.h> 
32 
33/* The definitions in this header are specified to appear in <wctype.h> 
34 in ISO C99, but in <wchar.h> in Unix98. _GNU_SOURCE follows C99. */ 
35 
36/* Scalar type that can hold values which represent locale-specific 
37 character classifications. */ 
38typedef unsigned long int wctype_t; 
39 
40# ifndef _ISwbit 
41/* The characteristics are stored always in network byte order (big 
42 endian). We define the bit value interpretations here dependent on the 
43 machine's byte order. */ 
44 
45# include <bits/endian.h> 
46# if __BYTE_ORDER == __BIG_ENDIAN 
47# define _ISwbit(bit) (1 << (bit)) 
48# else /* __BYTE_ORDER == __LITTLE_ENDIAN */ 
49# define _ISwbit(bit) \ 
50 ((bit) < 8 ? (int) ((1UL << (bit)) << 24) \ 
51 : ((bit) < 16 ? (int) ((1UL << (bit)) << 8) \ 
52 : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8) \ 
53 : (int) ((1UL << (bit)) >> 24)))) 
54# endif 
55 
56enum 
57{ 
58 __ISwupper = 0, /* UPPERCASE. */ 
59 __ISwlower = 1, /* lowercase. */ 
60 __ISwalpha = 2, /* Alphabetic. */ 
61 __ISwdigit = 3, /* Numeric. */ 
62 __ISwxdigit = 4, /* Hexadecimal numeric. */ 
63 __ISwspace = 5, /* Whitespace. */ 
64 __ISwprint = 6, /* Printing. */ 
65 __ISwgraph = 7, /* Graphical. */ 
66 __ISwblank = 8, /* Blank (usually SPC and TAB). */ 
67 __ISwcntrl = 9, /* Control character. */ 
68 __ISwpunct = 10, /* Punctuation. */ 
69 __ISwalnum = 11, /* Alphanumeric. */ 
70 
71 _ISwupper = _ISwbit (__ISwupper), /* UPPERCASE. */ 
72 _ISwlower = _ISwbit (__ISwlower), /* lowercase. */ 
73 _ISwalpha = _ISwbit (__ISwalpha), /* Alphabetic. */ 
74 _ISwdigit = _ISwbit (__ISwdigit), /* Numeric. */ 
75 _ISwxdigit = _ISwbit (__ISwxdigit), /* Hexadecimal numeric. */ 
76 _ISwspace = _ISwbit (__ISwspace), /* Whitespace. */ 
77 _ISwprint = _ISwbit (__ISwprint), /* Printing. */ 
78 _ISwgraph = _ISwbit (__ISwgraph), /* Graphical. */ 
79 _ISwblank = _ISwbit (__ISwblank), /* Blank (usually SPC and TAB). */ 
80 _ISwcntrl = _ISwbit (__ISwcntrl), /* Control character. */ 
81 _ISwpunct = _ISwbit (__ISwpunct), /* Punctuation. */ 
82 _ISwalnum = _ISwbit (__ISwalnum) /* Alphanumeric. */ 
83}; 
84# endif /* Not _ISwbit */ 
85 
86 
87__BEGIN_DECLS 
88 
89/* 
90 * Wide-character classification functions: 7.15.2.1. 
91 */ 
92 
93/* Test for any wide character for which `iswalpha' or `iswdigit' is 
94 true. */ 
95extern int iswalnum (wint_t __wc) __THROW; 
96 
97/* Test for any wide character for which `iswupper' or 'iswlower' is 
98 true, or any wide character that is one of a locale-specific set of 
99 wide-characters for which none of `iswcntrl', `iswdigit', 
100 `iswpunct', or `iswspace' is true. */ 
101extern int iswalpha (wint_t __wc) __THROW; 
102 
103/* Test for any control wide character. */ 
104extern int iswcntrl (wint_t __wc) __THROW; 
105 
106/* Test for any wide character that corresponds to a decimal-digit 
107 character. */ 
108extern int iswdigit (wint_t __wc) __THROW; 
109 
110/* Test for any wide character for which `iswprint' is true and 
111 `iswspace' is false. */ 
112extern int iswgraph (wint_t __wc) __THROW; 
113 
114/* Test for any wide character that corresponds to a lowercase letter 
115 or is one of a locale-specific set of wide characters for which 
116 none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ 
117extern int iswlower (wint_t __wc) __THROW; 
118 
119/* Test for any printing wide character. */ 
120extern int iswprint (wint_t __wc) __THROW; 
121 
122/* Test for any printing wide character that is one of a 
123 locale-specific et of wide characters for which neither `iswspace' 
124 nor `iswalnum' is true. */ 
125extern int iswpunct (wint_t __wc) __THROW; 
126 
127/* Test for any wide character that corresponds to a locale-specific 
128 set of wide characters for which none of `iswalnum', `iswgraph', or 
129 `iswpunct' is true. */ 
130extern int iswspace (wint_t __wc) __THROW; 
131 
132/* Test for any wide character that corresponds to an uppercase letter 
133 or is one of a locale-specific set of wide character for which none 
134 of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ 
135extern int iswupper (wint_t __wc) __THROW; 
136 
137/* Test for any wide character that corresponds to a hexadecimal-digit 
138 character equivalent to that performed be the functions described 
139 in the previous subclause. */ 
140extern int iswxdigit (wint_t __wc) __THROW; 
141 
142/* Test for any wide character that corresponds to a standard blank 
143 wide character or a locale-specific set of wide characters for 
144 which `iswalnum' is false. */ 
145# ifdef __USE_ISOC99 
146extern int iswblank (wint_t __wc) __THROW; 
147# endif 
148 
149/* 
150 * Extensible wide-character classification functions: 7.15.2.2. 
151 */ 
152 
153/* Construct value that describes a class of wide characters identified 
154 by the string argument PROPERTY. */ 
155extern wctype_t wctype (const char *__property) __THROW; 
156 
157/* Determine whether the wide-character WC has the property described by 
158 DESC. */ 
159extern int iswctype (wint_t __wc, wctype_t __desc) __THROW; 
160 
161/* 
162 * Wide-character case-mapping functions: 7.15.3.1. 
163 */ 
164 
165/* Converts an uppercase letter to the corresponding lowercase letter. */ 
166extern wint_t towlower (wint_t __wc) __THROW; 
167 
168/* Converts an lowercase letter to the corresponding uppercase letter. */ 
169extern wint_t towupper (wint_t __wc) __THROW; 
170 
171__END_DECLS 
172 
173#endif /* bits/wctype-wchar.h. */ 
174