1 /* Copyright (C) 2002 Manuel Novoa III 2 * 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. 7 * 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. 12 * 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/>. 16 */ 17 18 /* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! 19 * 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. 25 * Thanks. Manuel 26 * 27 * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */ 28 29 #if !defined(_CTYPE_H) && !defined(_WCTYPE_H) 30 #error Always include <{w}ctype.h> rather than <bits/uClibc_ctype.h> 31 #endif 32 33 #ifndef _BITS_UCLIBC_CTYPE_H 34 #define _BITS_UCLIBC_CTYPE_H 35 36 #ifdef __UCLIBC_GEN_LOCALE 37 /* We are in extra/locale/gen_XXX tools build */ 38 39 #include "uClibc_charclass.h" 40 41 #else 42 43 /* Define some ctype macros valid for the C/POSIX locale. */ 44 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) \ 56 (__C_isdigit(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) \ 82 ((!__C_isalnum(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))) 90 91 #define __C_tolower(c) (__C_isupper(c) ? ((c) | 0x20) : (c)) 92 #define __C_toupper(c) (__C_islower(c) ? ((c) ^ 0x20) : (c)) 93 94 /**********************************************************************/ 95 __BEGIN_DECLS 96 97 #ifdef _LIBC 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) 101 #endif 102 103 /* Now some non-ansi/iso c99 macros. */ 104 105 #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) 112 #endif 113 114 __END_DECLS 115 116 /**********************************************************************/ 117 #ifdef __GNUC__ 118 119 # define __body_C_macro(f,args) __C_ ## f args 120 121 # define __body(f,c) \ 122 (__extension__ ({ \ 123 int __res; \ 124 if (sizeof(c) > sizeof(char)) { \ 125 int __c = (c); \ 126 __res = __body_C_macro(f,(__c)); \ 127 } else { \ 128 unsigned char __c = (c); \ 129 __res = __body_C_macro(f,(__c)); \ 130 } \ 131 __res; \ 132 })) 133 134 # 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) 146 147 /*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) 151 */ 152 153 /* Do not combine in one #if - unifdef tool is not that clever */ 154 # ifndef __NO_CTYPE 155 # ifndef __cplusplus 156 157 # 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) 169 170 # define tolower(c) __body(tolower,c) 171 # define toupper(c) __body(toupper,c) 172 173 # endif 174 # endif 175 176 #else /* !_GNUC__ */ 177 178 # ifndef __NO_CTYPE 179 # ifndef __cplusplus 180 181 /* 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) 189 190 # endif 191 # endif 192 193 #endif /* __GNUC__ */ 194 /**********************************************************************/ 195 196 #endif /* __UCLIBC_GEN_LOCALE */ 197 198 #endif /* _BITS_UCLIBC_CTYPE_H */ 199