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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  #include <stdarg.h>
35  #include <stddef.h>
36  #include <time.h>
37  #include <malloc.h>
38  
39  /* IMPORTANT: Any code that relies on wide character support is essentially
40   *            non-portable and/or broken. the only reason this header exist
41   *            is because I'm really a nice guy. However, I'm not nice enough
42   *            to provide you with a real implementation. instead wchar_t == char
43   *            and all wc functions are stubs to their "normal" equivalent...
44   */
45  
46  __BEGIN_DECLS
47  
48  typedef __WINT_TYPE__           wint_t;
49  typedef struct { int  dummy; }  mbstate_t;
50  
51  typedef enum {
52      WC_TYPE_INVALID = 0,
53      WC_TYPE_ALNUM,
54      WC_TYPE_ALPHA,
55      WC_TYPE_BLANK,
56      WC_TYPE_CNTRL,
57      WC_TYPE_DIGIT,
58      WC_TYPE_GRAPH,
59      WC_TYPE_LOWER,
60      WC_TYPE_PRINT,
61      WC_TYPE_PUNCT,
62      WC_TYPE_SPACE,
63      WC_TYPE_UPPER,
64      WC_TYPE_XDIGIT,
65      WC_TYPE_MAX
66  } wctype_t;
67  
68  #define  WCHAR_MAX   INT_MAX
69  #define  WCHAR_MIN   INT_MIN
70  #define  WEOF        ((wint_t)(-1))
71  
72  extern wint_t            btowc(int);
73  extern int               fwprintf(FILE *, const wchar_t *, ...);
74  extern int               fwscanf(FILE *, const wchar_t *, ...);
75  extern int               iswalnum(wint_t);
76  extern int               iswalpha(wint_t);
77  extern int               iswcntrl(wint_t);
78  extern int               iswdigit(wint_t);
79  extern int               iswgraph(wint_t);
80  extern int               iswlower(wint_t);
81  extern int               iswprint(wint_t);
82  extern int               iswpunct(wint_t);
83  extern int               iswspace(wint_t);
84  extern int               iswupper(wint_t);
85  extern int               iswxdigit(wint_t);
86  extern int               iswctype(wint_t, wctype_t);
87  extern wint_t            fgetwc(FILE *);
88  extern wchar_t          *fgetws(wchar_t *, int, FILE *);
89  extern wint_t            fputwc(wchar_t, FILE *);
90  extern int               fputws(const wchar_t *, FILE *);
91  extern int               fwide(FILE *, int);
92  extern wint_t            getwc(FILE *);
93  extern wint_t            getwchar(void);
94  extern int               mbsinit(const mbstate_t *);
95  extern size_t            mbrlen(const char *, size_t, mbstate_t *);
96  extern size_t            mbrtowc(wchar_t *, const char *, size_t, mbstate_t *);
97  extern size_t            mbsrtowcs(wchar_t *, const char **, size_t, mbstate_t *);
98  extern size_t            mbstowcs(wchar_t *, const char *, size_t);
99  extern wint_t            putwc(wchar_t, FILE *);
100  extern wint_t            putwchar(wchar_t);
101  extern int               swprintf(wchar_t *, size_t, const wchar_t *, ...);
102  extern int               swscanf(const wchar_t *, const wchar_t *, ...);
103  extern wint_t            towlower(wint_t);
104  extern wint_t            towupper(wint_t);
105  extern wint_t            ungetwc(wint_t, FILE *);
106  extern int               vfwprintf(FILE *, const wchar_t *, va_list);
107  extern int               vwprintf(const wchar_t *, va_list);
108  extern int               vswprintf(wchar_t *, size_t, const wchar_t *, va_list);
109  extern size_t            wcrtomb(char *, wchar_t, mbstate_t *);
110  extern int               wcscasecmp(const wchar_t *, const wchar_t *);
111  extern wchar_t          *wcscat(wchar_t *, const wchar_t *);
112  extern wchar_t          *wcschr(const wchar_t *, wchar_t);
113  extern int               wcscmp(const wchar_t *, const wchar_t *);
114  extern int               wcscoll(const wchar_t *, const wchar_t *);
115  extern wchar_t          *wcscpy(wchar_t *, const wchar_t *);
116  extern size_t            wcscspn(const wchar_t *, const wchar_t *);
117  extern size_t            wcsftime(wchar_t *, size_t, const wchar_t *, const struct tm *);
118  extern size_t            wcslen(const wchar_t *);
119  extern int               wcsncasecmp(const wchar_t *, const wchar_t *, size_t);
120  extern wchar_t          *wcsncat(wchar_t *, const wchar_t *, size_t);
121  extern int               wcsncmp(const wchar_t *, const wchar_t *, size_t);
122  extern wchar_t          *wcsncpy(wchar_t *, const wchar_t *, size_t);
123  extern wchar_t          *wcspbrk(const wchar_t *, const wchar_t *);
124  extern wchar_t          *wcsrchr(const wchar_t *, wchar_t);
125  extern size_t            wcsrtombs(char *, const wchar_t **, size_t, mbstate_t *);
126  extern size_t            wcsspn(const wchar_t *, const wchar_t *);
127  extern wchar_t          *wcsstr(const wchar_t *, const wchar_t *);
128  extern double            wcstod(const wchar_t *, wchar_t **);
129  extern wchar_t          *wcstok(wchar_t *, const wchar_t *, wchar_t **);
130  extern long int          wcstol(const wchar_t *, wchar_t **, int);
131  extern size_t            wcstombs(char *, const wchar_t *, size_t);
132  extern unsigned long int wcstoul(const wchar_t *, wchar_t **, int);
133  extern wchar_t          *wcswcs(const wchar_t *, const wchar_t *);
134  extern int               wcswidth(const wchar_t *, size_t);
135  extern size_t            wcsxfrm(wchar_t *, const wchar_t *, size_t);
136  extern int               wctob(wint_t);
137  extern wctype_t          wctype(const char *);
138  extern int               wcwidth(wchar_t);
139  extern wchar_t          *wmemchr(const wchar_t *, wchar_t, size_t);
140  extern int               wmemcmp(const wchar_t *, const wchar_t *, size_t);
141  extern wchar_t          *wmemcpy(wchar_t *, const wchar_t *, size_t);
142  extern wchar_t          *wmemmove(wchar_t *, const wchar_t *, size_t);
143  extern wchar_t          *wmemset(wchar_t *, wchar_t, size_t);
144  extern int               wprintf(const wchar_t *, ...);
145  extern int               wscanf(const wchar_t *, ...);
146  
147  /* No really supported.  These are just for making libstdc++-v3 happy.  */
148  typedef void *wctrans_t;
149  extern wint_t		 towctrans(wint_t, wctrans_t);
150  extern wctrans_t	 wctrans (const char *);
151  
152  #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
153  wchar_t* wcsdup(const wchar_t*);
154  size_t wcsnlen(const wchar_t*, size_t);
155  #endif
156  
157  __END_DECLS
158  
159  #endif /* _WCHAR_H_ */
160