1 /* Copyright (C) 2002 Manuel Novoa III
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
8 * The GNU C Library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with the GNU C Library; see the file COPYING.LIB. If
15 * not, see <http://www.gnu.org/licenses/>.
18 /* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
20 * Besides uClibc, I'm using this code in my libc for elks, which is
21 * a 16-bit environment with a fairly limited compiler. It would make
22 * things much easier for me if this file isn't modified unnecessarily.
23 * In particular, please put any new or replacement functions somewhere
24 * else, and modify the makefile to use your version instead.
27 * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
29 #if !defined(_CTYPE_H) && !defined(_WCTYPE_H)
30 #error Always include <{w}ctype.h> rather than <bits/uClibc_ctype.h>
33 #ifndef _BITS_UCLIBC_CTYPE_H
34 #define _BITS_UCLIBC_CTYPE_H
36 #ifdef __UCLIBC_GEN_LOCALE
37 /* We are in extra/locale/gen_XXX tools build */
39 #include "uClibc_charclass.h"
43 /* Define some ctype macros valid for the C/POSIX locale. */
45 /* ASCII ords of \t, \f, \n, \r, and \v are 9, 12, 10, 13, 11 respectively. */
46 #define __C_isspace(c) \
47 ((sizeof(c) == sizeof(char)) \
48 ? ((((c) == ' ') || (((unsigned char)((c) - 9)) <= (13 - 9)))) \
49 : ((((c) == ' ') || (((unsigned int)((c) - 9)) <= (13 - 9)))))
50 #define __C_isblank(c) (((c) == ' ') || ((c) == '\t'))
51 #define __C_isdigit(c) \
52 ((sizeof(c) == sizeof(char)) \
53 ? (((unsigned char)((c) - '0')) < 10) \
54 : (((unsigned int)((c) - '0')) < 10))
55 #define __C_isxdigit(c) \
57 || ((sizeof(c) == sizeof(char)) \
58 ? (((unsigned char)((((c)) | 0x20) - 'a')) < 6) \
59 : (((unsigned int)((((c)) | 0x20) - 'a')) < 6)))
60 #define __C_iscntrl(c) \
61 ((sizeof(c) == sizeof(char)) \
62 ? ((((unsigned char)(c)) < 0x20) || ((c) == 0x7f)) \
63 : ((((unsigned int)(c)) < 0x20) || ((c) == 0x7f)))
64 #define __C_isalpha(c) \
65 ((sizeof(c) == sizeof(char)) \
66 ? (((unsigned char)(((c) | 0x20) - 'a')) < 26) \
67 : (((unsigned int)(((c) | 0x20) - 'a')) < 26))
68 #define __C_isalnum(c) (__C_isalpha(c) || __C_isdigit(c))
69 #define __C_isprint(c) \
70 ((sizeof(c) == sizeof(char)) \
71 ? (((unsigned char)((c) - 0x20)) <= (0x7e - 0x20)) \
72 : (((unsigned int)((c) - 0x20)) <= (0x7e - 0x20)))
73 #define __C_islower(c) \
74 ((sizeof(c) == sizeof(char)) \
75 ? (((unsigned char)((c) - 'a')) < 26) \
76 : (((unsigned int)((c) - 'a')) < 26))
77 #define __C_isupper(c) \
78 ((sizeof(c) == sizeof(char)) \
79 ? (((unsigned char)((c) - 'A')) < 26) \
80 : (((unsigned int)((c) - 'A')) < 26))
81 #define __C_ispunct(c) \
83 && ((sizeof(c) == sizeof(char)) \
84 ? (((unsigned char)((c) - 0x21)) <= (0x7e - 0x21)) \
85 : (((unsigned int)((c) - 0x21)) <= (0x7e - 0x21))))
86 #define __C_isgraph(c) \
87 ((sizeof(c) == sizeof(char)) \
88 ? (((unsigned char)((c) - 0x21)) <= (0x7e - 0x21)) \
89 : (((unsigned int)((c) - 0x21)) <= (0x7e - 0x21)))
91 #define __C_tolower(c) (__C_isupper(c) ? ((c) | 0x20) : (c))
92 #define __C_toupper(c) (__C_islower(c) ? ((c) ^ 0x20) : (c))
94 /**********************************************************************/
98 /* These are uClibc-specific. */
99 # define __isdigit_char(c) ((unsigned char)((c) - '0') <= 9)
100 # define __isdigit_int(c) ((unsigned int)((c) - '0') <= 9)
103 /* Now some non-ansi/iso c99 macros. */
105 #ifdef __UCLIBC_SUSV4_LEGACY__
106 #define __isascii(c) (((c) & ~0x7f) == 0)
107 #define __toascii(c) ((c) & 0x7f)
108 /* Works correctly *only* on lowercase letters! */
109 #define _toupper(c) ((c) ^ 0x20)
110 /* Works correctly *only* on letters (of any case) and numbers */
111 #define _tolower(c) ((c) | 0x20)
116 /**********************************************************************/
119 # define __body_C_macro(f,args) __C_ ## f args
121 # define __body(f,c) \
124 if (sizeof(c) > sizeof(char)) { \
126 __res = __body_C_macro(f,(__c)); \
128 unsigned char __c = (c); \
129 __res = __body_C_macro(f,(__c)); \
134 # define __isspace(c) __body(isspace,c)
135 # define __isblank(c) __body(isblank,c)
136 # define __isdigit(c) __body(isdigit,c)
137 # define __isxdigit(c) __body(isxdigit,c)
138 # define __iscntrl(c) __body(iscntrl,c)
139 # define __isalpha(c) __body(isalpha,c)
140 # define __isalnum(c) __body(isalnum,c)
141 # define __isprint(c) __body(isprint,c)
142 # define __islower(c) __body(islower,c)
143 # define __isupper(c) __body(isupper,c)
144 # define __ispunct(c) __body(ispunct,c)
145 # define __isgraph(c) __body(isgraph,c)
147 /*locale-aware ctype.h has no __tolower, why stub locale
148 *tries to have it? remove after 0.9.31
149 *# define __tolower(c) __body(tolower,c)
150 *# define __toupper(c) __body(toupper,c)
153 /* Do not combine in one #if - unifdef tool is not that clever */
157 # define isspace(c) __isspace(c)
158 # define isblank(c) __isblank(c)
159 # define isdigit(c) __isdigit(c)
160 # define isxdigit(c) __isxdigit(c)
161 # define iscntrl(c) __iscntrl(c)
162 # define isalpha(c) __isalpha(c)
163 # define isalnum(c) __isalnum(c)
164 # define isprint(c) __isprint(c)
165 # define islower(c) __islower(c)
166 # define isupper(c) __isupper(c)
167 # define ispunct(c) __ispunct(c)
168 # define isgraph(c) __isgraph(c)
170 # define tolower(c) __body(tolower,c)
171 # define toupper(c) __body(toupper,c)
181 /* These macros should be safe from side effects!
182 * (not all __C_xxx macros are) */
183 # define isdigit(c) __C_isdigit(c)
184 # define isalpha(c) __C_isalpha(c)
185 # define isprint(c) __C_isprint(c)
186 # define islower(c) __C_islower(c)
187 # define isupper(c) __C_isupper(c)
188 # define isgraph(c) __C_isgraph(c)
193 #endif /* __GNUC__ */
194 /**********************************************************************/
196 #endif /* __UCLIBC_GEN_LOCALE */
198 #endif /* _BITS_UCLIBC_CTYPE_H */