1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 #ifndef _WCHAR_H_
29 #define _WCHAR_H_
30 
31 #include <sys/cdefs.h>
32 #include <stdio.h>
33 
34 /* wchar_t is required in stdlib.h according to POSIX */
35 #define __need___wchar_t
36 #include <stddef.h>
37 
38 #include <stdarg.h>
39 #include <time.h>
40 #include <malloc.h>
41 
42 #include <stddef.h>
43 #include <sys/_wchar_limits.h>
44 
45 /* IMPORTANT: Any code that relies on wide character support is essentially
46  *            non-portable and/or broken. the only reason this header exist
47  *            is because I'm really a nice guy. However, I'm not nice enough
48  *            to provide you with a real implementation. instead wchar_t == char
49  *            and all wc functions are stubs to their "normal" equivalent...
50  */
51 
52 __BEGIN_DECLS
53 
54 typedef __WINT_TYPE__           wint_t;
55 typedef struct { int  dummy; }  mbstate_t;
56 
57 typedef enum {
58     WC_TYPE_INVALID = 0,
59     WC_TYPE_ALNUM,
60     WC_TYPE_ALPHA,
61     WC_TYPE_BLANK,
62     WC_TYPE_CNTRL,
63     WC_TYPE_DIGIT,
64     WC_TYPE_GRAPH,
65     WC_TYPE_LOWER,
66     WC_TYPE_PRINT,
67     WC_TYPE_PUNCT,
68     WC_TYPE_SPACE,
69     WC_TYPE_UPPER,
70     WC_TYPE_XDIGIT,
71     WC_TYPE_MAX
72 } wctype_t;
73 
74 /* WEOF used to be defined as simply -1, which is
75  * invalid (the standard mandates that the expression must have wint_t
76  * type). Revert to the old broken behaviour is _WCHAR_IS_8BIT is defined.
77  * See http://b.android.com/57267 */
78 #ifdef _WCHAR_IS_8BIT
79 #define  WEOF        (-1)
80 #else
81 #define  WEOF        ((wint_t)-1)
82 #endif
83 #ifdef _WCHAR_IS_8BIT
84 #define  WEOF        (-1)
85 #else
86 #define  WEOF        ((wint_t)-1)
87 #endif
88 
89 extern wint_t            btowc(int);
90 extern int               fwprintf(FILE *, const wchar_t *, ...);
91 extern int               fwscanf(FILE *, const wchar_t *, ...);
92 extern int               iswalnum(wint_t);
93 extern int               iswalpha(wint_t);
94 extern int               iswcntrl(wint_t);
95 extern int               iswdigit(wint_t);
96 extern int               iswgraph(wint_t);
97 extern int               iswlower(wint_t);
98 extern int               iswprint(wint_t);
99 extern int               iswpunct(wint_t);
100 extern int               iswspace(wint_t);
101 extern int               iswupper(wint_t);
102 extern int               iswxdigit(wint_t);
103 extern int               iswctype(wint_t, wctype_t);
104 extern wint_t            fgetwc(FILE *);
105 extern wchar_t          *fgetws(wchar_t *, int, FILE *);
106 extern wint_t            fputwc(wchar_t, FILE *);
107 extern int               fputws(const wchar_t *, FILE *);
108 extern int               fwide(FILE *, int);
109 extern wint_t            getwc(FILE *);
110 extern wint_t            getwchar(void);
111 extern int               mbsinit(const mbstate_t *);
112 extern size_t            mbrlen(const char *, size_t, mbstate_t *);
113 extern size_t            mbrtowc(wchar_t *, const char *, size_t, mbstate_t *);
114 extern size_t            mbsrtowcs(wchar_t *, const char **, size_t, mbstate_t *);
115 extern size_t            mbstowcs(wchar_t *, const char *, size_t);
116 extern wint_t            putwc(wchar_t, FILE *);
117 extern wint_t            putwchar(wchar_t);
118 extern int               swprintf(wchar_t *, size_t, const wchar_t *, ...);
119 extern int               swscanf(const wchar_t *, const wchar_t *, ...);
120 extern wint_t            towlower(wint_t);
121 extern wint_t            towupper(wint_t);
122 extern wint_t            ungetwc(wint_t, FILE *);
123 extern int               vfwprintf(FILE *, const wchar_t *, va_list);
124 extern int               vwprintf(const wchar_t *, va_list);
125 extern int               vswprintf(wchar_t *, size_t, const wchar_t *, va_list);
126 extern size_t            wcrtomb(char *, wchar_t, mbstate_t *);
127 extern wchar_t          *wcscat(wchar_t *, const wchar_t *);
128 extern wchar_t          *wcschr(const wchar_t *, wchar_t);
129 extern int               wcscmp(const wchar_t *, const wchar_t *);
130 extern int               wcscoll(const wchar_t *, const wchar_t *);
131 extern wchar_t          *wcscpy(wchar_t *, const wchar_t *);
132 extern size_t            wcscspn(const wchar_t *, const wchar_t *);
133 extern size_t            wcsftime(wchar_t *, size_t, const wchar_t *, const struct tm *);
134 extern size_t            wcslen(const wchar_t *);
135 extern wchar_t          *wcsncat(wchar_t *, const wchar_t *, size_t);
136 extern int               wcsncmp(const wchar_t *, const wchar_t *, size_t);
137 extern wchar_t          *wcsncpy(wchar_t *, const wchar_t *, size_t);
138 extern wchar_t          *wcspbrk(const wchar_t *, const wchar_t *);
139 extern wchar_t          *wcsrchr(const wchar_t *, wchar_t);
140 extern size_t            wcsrtombs(char *, const wchar_t **, size_t, mbstate_t *);
141 extern size_t            wcsspn(const wchar_t *, const wchar_t *);
142 extern wchar_t          *wcsstr(const wchar_t *, const wchar_t *);
143 extern double            wcstod(const wchar_t *, wchar_t **) __NDK_FPABI__;
144 extern wchar_t          *wcstok(wchar_t *, const wchar_t *, wchar_t **);
145 extern long int          wcstol(const wchar_t *, wchar_t **, int);
146 extern size_t            wcstombs(char *, const wchar_t *, size_t);
147 extern unsigned long int wcstoul(const wchar_t *, wchar_t **, int);
148 extern wchar_t          *wcswcs(const wchar_t *, const wchar_t *);
149 extern int               wcswidth(const wchar_t *, size_t);
150 extern size_t            wcsxfrm(wchar_t *, const wchar_t *, size_t);
151 extern int               wctob(wint_t);
152 extern wctype_t          wctype(const char *);
153 extern int               wcwidth(wchar_t);
154 extern wchar_t          *wmemchr(const wchar_t *, wchar_t, size_t);
155 extern int               wmemcmp(const wchar_t *, const wchar_t *, size_t);
156 extern wchar_t          *wmemcpy(wchar_t *, const wchar_t *, size_t);
157 extern wchar_t          *wmemmove(wchar_t *, const wchar_t *, size_t);
158 extern wchar_t          *wmemset(wchar_t *, wchar_t, size_t);
159 extern int               wprintf(const wchar_t *, ...);
160 extern int               wscanf(const wchar_t *, ...);
161 
162 /* No really supported.  These are just for making libstdc++-v3 happy.  */
163 typedef void *wctrans_t;
164 extern wint_t		 towctrans(wint_t, wctrans_t);
165 extern wctrans_t	 wctrans (const char *);
166 
167 __END_DECLS
168 
169 #endif /* _WCHAR_H_ */
170