File Coverage

/usr/include/ctype.h
Criterion Covered Total %
statement 1 1 100.0
branch n/a
condition n/a
subroutine n/a
total 1 1 100.0


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1           /* Copyright (C) 1991,92,93,95,96,97,98,99,2001,2002,2004,2007,2008,2009,2011
2           Free Software Foundation, Inc.
3           This file is part of the GNU C Library.
4            
5           The GNU C Library is free software; you can redistribute it and/or
6           modify it under the terms of the GNU Lesser General Public
7           License as published by the Free Software Foundation; either
8           version 2.1 of the License, or (at your option) any later version.
9            
10           The GNU C Library is distributed in the hope that it will be useful,
11           but WITHOUT ANY WARRANTY; without even the implied warranty of
12           MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13           Lesser General Public License for more details.
14            
15           You should have received a copy of the GNU Lesser General Public
16           License along with the GNU C Library; if not, write to the Free
17           Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18           02111-1307 USA. */
19            
20           /*
21           * ISO C99 Standard 7.4: Character handling
22           */
23            
24           #ifndef _CTYPE_H
25           #define _CTYPE_H 1
26            
27           #include
28           #include
29            
30           __BEGIN_DECLS
31            
32           #ifndef _ISbit
33           /* These are all the characteristics of characters.
34           If there get to be more than 16 distinct characteristics,
35           many things must be changed that use `unsigned short int's.
36            
37           The characteristics are stored always in network byte order (big
38           endian). We define the bit value interpretations here dependent on the
39           machine's byte order. */
40            
41           # include
42           # if __BYTE_ORDER == __BIG_ENDIAN
43           # define _ISbit(bit) (1 << (bit))
44           # else /* __BYTE_ORDER == __LITTLE_ENDIAN */
45           # define _ISbit(bit) ((bit) < 8 ? ((1 << (bit)) << 8) : ((1 << (bit)) >> 8))
46           # endif
47            
48           enum
49           {
50           _ISupper = _ISbit (0), /* UPPERCASE. */
51           _ISlower = _ISbit (1), /* lowercase. */
52           _ISalpha = _ISbit (2), /* Alphabetic. */
53           _ISdigit = _ISbit (3), /* Numeric. */
54           _ISxdigit = _ISbit (4), /* Hexadecimal numeric. */
55           _ISspace = _ISbit (5), /* Whitespace. */
56           _ISprint = _ISbit (6), /* Printing. */
57           _ISgraph = _ISbit (7), /* Graphical. */
58           _ISblank = _ISbit (8), /* Blank (usually SPC and TAB). */
59           _IScntrl = _ISbit (9), /* Control character. */
60           _ISpunct = _ISbit (10), /* Punctuation. */
61           _ISalnum = _ISbit (11) /* Alphanumeric. */
62           };
63           #endif /* ! _ISbit */
64            
65           /* These are defined in ctype-info.c.
66           The declarations here must match those in localeinfo.h.
67            
68           In the thread-specific locale model (see `uselocale' in )
69           we cannot use global variables for these as was done in the past.
70           Instead, the following accessor functions return the address of
71           each variable, which is local to the current thread if multithreaded.
72            
73           These point into arrays of 384, so they can be indexed by any `unsigned
74           char' value [0,255]; by EOF (-1); or by any `signed char' value
75           [-128,-1). ISO C requires that the ctype functions work for `unsigned
76           char' values and for EOF; we also support negative `signed char' values
77           for broken old programs. The case conversion arrays are of `int's
78           rather than `unsigned char's because tolower (EOF) must be EOF, which
79           doesn't fit into an `unsigned char'. But today more important is that
80           the arrays are also used for multi-byte character sets. */
81           extern __const unsigned short int **__ctype_b_loc (void)
82           __THROW __attribute__ ((__const));
83           extern __const __int32_t **__ctype_tolower_loc (void)
84           __THROW __attribute__ ((__const));
85           extern __const __int32_t **__ctype_toupper_loc (void)
86           __THROW __attribute__ ((__const));
87            
88            
89           #ifndef __cplusplus
90           # define __isctype(c, type) \
91           ((*__ctype_b_loc ())[(int) (c)] & (unsigned short int) type)
92           #elif defined __USE_EXTERN_INLINES
93           # define __isctype_f(type) \
94           __extern_inline int \
95           is##type (int __c) __THROW \
96           { \
97           return (*__ctype_b_loc ())[(int) (__c)] & (unsigned short int) _IS##type; \
98           }
99           #endif
100            
101           #define __isascii(c) (((c) & ~0x7f) == 0) /* If C is a 7 bit value. */
102           #define __toascii(c) ((c) & 0x7f) /* Mask off high bits. */
103            
104           #define __exctype(name) extern int name (int) __THROW
105            
106           __BEGIN_NAMESPACE_STD
107            
108           /* The following names are all functions:
109           int isCHARACTERISTIC(int c);
110           which return nonzero iff C has CHARACTERISTIC.
111           For the meaning of the characteristic names, see the `enum' above. */
112           __exctype (isalnum);
113           __exctype (isalpha);
114           __exctype (iscntrl);
115           __exctype (isdigit);
116           __exctype (islower);
117           __exctype (isgraph);
118           __exctype (isprint);
119           __exctype (ispunct);
120           __exctype (isspace);
121           __exctype (isupper);
122           __exctype (isxdigit);
123            
124            
125           /* Return the lowercase version of C. */
126           extern int tolower (int __c) __THROW;
127            
128           /* Return the uppercase version of C. */
129           extern int toupper (int __c) __THROW;
130            
131           __END_NAMESPACE_STD
132            
133            
134           /* ISO C99 introduced one new function. */
135           #ifdef __USE_ISOC99
136           __BEGIN_NAMESPACE_C99
137            
138           __exctype (isblank);
139            
140           __END_NAMESPACE_C99
141           #endif
142            
143           #ifdef __USE_GNU
144           /* Test C for a set of character classes according to MASK. */
145           extern int isctype (int __c, int __mask) __THROW;
146           #endif
147            
148           #if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN
149            
150           /* Return nonzero iff C is in the ASCII set
151           (i.e., is no more than 7 bits wide). */
152           extern int isascii (int __c) __THROW;
153            
154           /* Return the part of C that is in the ASCII set
155           (i.e., the low-order 7 bits of C). */
156           extern int toascii (int __c) __THROW;
157            
158           /* These are the same as `toupper' and `tolower' except that they do not
159           check the argument for being in the range of a `char'. */
160           __exctype (_toupper);
161           __exctype (_tolower);
162           #endif /* Use SVID or use misc. */
163            
164           /* This code is needed for the optimized mapping functions. */
165           #define __tobody(c, f, a, args) \
166           (__extension__ \
167           ({ int __res; \
168           if (sizeof (c) > 1) \
169           { \
170           if (__builtin_constant_p (c)) \
171           { \
172           int __c = (c); \
173           __res = __c < -128 || __c > 255 ? __c : (a)[__c]; \
174           } \
175           else \
176           __res = f args; \
177           } \
178           else \
179           __res = (a)[(int) (c)]; \
180           __res; }))
181            
182           #if !defined __NO_CTYPE
183           # ifdef __isctype_f
184           __isctype_f (alnum)
185           __isctype_f (alpha)
186           __isctype_f (cntrl)
187           __isctype_f (digit)
188           __isctype_f (lower)
189           __isctype_f (graph)
190           __isctype_f (print)
191           __isctype_f (punct)
192           __isctype_f (space)
193           __isctype_f (upper)
194           __isctype_f (xdigit)
195           # ifdef __USE_ISOC99
196           __isctype_f (blank)
197           # endif
198           # elif defined __isctype
199           # define isalnum(c) __isctype((c), _ISalnum)
200           # define isalpha(c) __isctype((c), _ISalpha)
201           # define iscntrl(c) __isctype((c), _IScntrl)
202           # define isdigit(c) __isctype((c), _ISdigit)
203           # define islower(c) __isctype((c), _ISlower)
204           # define isgraph(c) __isctype((c), _ISgraph)
205           # define isprint(c) __isctype((c), _ISprint)
206           # define ispunct(c) __isctype((c), _ISpunct)
207           # define isspace(c) __isctype((c), _ISspace)
208           # define isupper(c) __isctype((c), _ISupper)
209           # define isxdigit(c) __isctype((c), _ISxdigit)
210           # ifdef __USE_ISOC99
211           # define isblank(c) __isctype((c), _ISblank)
212           # endif
213           # endif
214            
215           # ifdef __USE_EXTERN_INLINES
216           __extern_inline int
217           __NTH (tolower (int __c))
218           {
219 3024         return __c >= -128 && __c < 256 ? (*__ctype_tolower_loc ())[__c] : __c;
220           }
221            
222           __extern_inline int
223           __NTH (toupper (int __c))
224           {
225           return __c >= -128 && __c < 256 ? (*__ctype_toupper_loc ())[__c] : __c;
226           }
227           # endif
228            
229           # if __GNUC__ >= 2 && defined __OPTIMIZE__ && !defined __cplusplus
230           # define tolower(c) __tobody (c, tolower, *__ctype_tolower_loc (), (c))
231           # define toupper(c) __tobody (c, toupper, *__ctype_toupper_loc (), (c))
232           # endif /* Optimizing gcc */
233            
234           # if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN
235           # define isascii(c) __isascii (c)
236           # define toascii(c) __toascii (c)
237            
238           # define _tolower(c) ((int) (*__ctype_tolower_loc ())[(int) (c)])
239           # define _toupper(c) ((int) (*__ctype_toupper_loc ())[(int) (c)])
240           # endif
241            
242           #endif /* Not __NO_CTYPE. */
243            
244            
245           #ifdef __USE_XOPEN2K8
246           /* The concept of one static locale per category is not very well
247           thought out. Many applications will need to process its data using
248           information from several different locales. Another application is
249           the implementation of the internationalization handling in the
250           upcoming ISO C++ standard library. To support this another set of
251           the functions using locale data exist which have an additional
252           argument.
253            
254           Attention: all these functions are *not* standardized in any form.
255           This is a proof-of-concept implementation. */
256            
257           /* Structure for reentrant locale using functions. This is an
258           (almost) opaque type for the user level programs. */
259           # include
260            
261           /* These definitions are similar to the ones above but all functions
262           take as an argument a handle for the locale which shall be used. */
263           # define __isctype_l(c, type, locale) \
264           ((locale)->__ctype_b[(int) (c)] & (unsigned short int) type)
265            
266           # define __exctype_l(name) \
267           extern int name (int, __locale_t) __THROW
268            
269           /* The following names are all functions:
270           int isCHARACTERISTIC(int c, locale_t *locale);
271           which return nonzero iff C has CHARACTERISTIC.
272           For the meaning of the characteristic names, see the `enum' above. */
273           __exctype_l (isalnum_l);
274           __exctype_l (isalpha_l);
275           __exctype_l (iscntrl_l);
276           __exctype_l (isdigit_l);
277           __exctype_l (islower_l);
278           __exctype_l (isgraph_l);
279           __exctype_l (isprint_l);
280           __exctype_l (ispunct_l);
281           __exctype_l (isspace_l);
282           __exctype_l (isupper_l);
283           __exctype_l (isxdigit_l);
284            
285           __exctype_l (isblank_l);
286            
287            
288           /* Return the lowercase version of C in locale L. */
289           extern int __tolower_l (int __c, __locale_t __l) __THROW;
290           extern int tolower_l (int __c, __locale_t __l) __THROW;
291            
292           /* Return the uppercase version of C. */
293           extern int __toupper_l (int __c, __locale_t __l) __THROW;
294           extern int toupper_l (int __c, __locale_t __l) __THROW;
295            
296           # if __GNUC__ >= 2 && defined __OPTIMIZE__ && !defined __cplusplus
297           # define __tolower_l(c, locale) \
298           __tobody (c, __tolower_l, (locale)->__ctype_tolower, (c, locale))
299           # define __toupper_l(c, locale) \
300           __tobody (c, __toupper_l, (locale)->__ctype_toupper, (c, locale))
301           # define tolower_l(c, locale) __tolower_l ((c), (locale))
302           # define toupper_l(c, locale) __toupper_l ((c), (locale))
303           # endif /* Optimizing gcc */
304            
305            
306           # ifndef __NO_CTYPE
307           # define __isalnum_l(c,l) __isctype_l((c), _ISalnum, (l))
308           # define __isalpha_l(c,l) __isctype_l((c), _ISalpha, (l))
309           # define __iscntrl_l(c,l) __isctype_l((c), _IScntrl, (l))
310           # define __isdigit_l(c,l) __isctype_l((c), _ISdigit, (l))
311           # define __islower_l(c,l) __isctype_l((c), _ISlower, (l))
312           # define __isgraph_l(c,l) __isctype_l((c), _ISgraph, (l))
313           # define __isprint_l(c,l) __isctype_l((c), _ISprint, (l))
314           # define __ispunct_l(c,l) __isctype_l((c), _ISpunct, (l))
315           # define __isspace_l(c,l) __isctype_l((c), _ISspace, (l))
316           # define __isupper_l(c,l) __isctype_l((c), _ISupper, (l))
317           # define __isxdigit_l(c,l) __isctype_l((c), _ISxdigit, (l))
318            
319           # define __isblank_l(c,l) __isctype_l((c), _ISblank, (l))
320            
321           # if defined __USE_SVID || defined __USE_MISC
322           # define __isascii_l(c,l) ((l), __isascii (c))
323           # define __toascii_l(c,l) ((l), __toascii (c))
324           # endif
325            
326           # define isalnum_l(c,l) __isalnum_l ((c), (l))
327           # define isalpha_l(c,l) __isalpha_l ((c), (l))
328           # define iscntrl_l(c,l) __iscntrl_l ((c), (l))
329           # define isdigit_l(c,l) __isdigit_l ((c), (l))
330           # define islower_l(c,l) __islower_l ((c), (l))
331           # define isgraph_l(c,l) __isgraph_l ((c), (l))
332           # define isprint_l(c,l) __isprint_l ((c), (l))
333           # define ispunct_l(c,l) __ispunct_l ((c), (l))
334           # define isspace_l(c,l) __isspace_l ((c), (l))
335           # define isupper_l(c,l) __isupper_l ((c), (l))
336           # define isxdigit_l(c,l) __isxdigit_l ((c), (l))
337            
338           # define isblank_l(c,l) __isblank_l ((c), (l))
339            
340           # if defined __USE_SVID || defined __USE_MISC
341           # define isascii_l(c,l) __isascii_l ((c), (l))
342           # define toascii_l(c,l) __toascii_l ((c), (l))
343           # endif
344            
345           # endif /* Not __NO_CTYPE. */
346            
347           #endif /* Use POSIX 2008. */
348            
349           __END_DECLS
350            
351           #endif /* ctype.h */