/*
 * Copyright (C) 2015-2020 Intel Corporation.
 * SPDX-License-Identifier: MIT
 */

/*
 * Copyright (C) 2008 The Android Open Source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _WCHAR_H_
#define _WCHAR_H_

#include <sys/cdefs.h>
#include <stdio.h>

#include <stdarg.h>
#include <stddef.h>
#include <time.h>

#include <machine/wchar_limits.h>

__BEGIN_DECLS

#if defined(__cplusplus) && (__cplusplus < 201103L)
# if defined(__clang__) && (__clang_major__ >= 9)
typedef __char16_t char16_t;
typedef __char32_t char32_t;
# elif !defined(_MSC_VER) || (_MSC_VER < 1900)
typedef unsigned short int char16_t;
typedef long int char32_t;
# endif
#endif

typedef __WINT_TYPE__  wint_t;

/*
 * mbstate_t definition tuning to compile with LLVM Linux and not break Mac:
 * gcc defines __mbstate_t and LLVM needs it in the following definition:
 * std::__1::codecvt<char, char, __mbstate_t>::id
 * w/o __mbstate_t the id static member above is an unreferenced external.
 * Therefore we need __mbstate_t in bionic too and in Linux.
 * In order to keep definitions consistent, we set mbstate_t and __mbstate_t
 * as aliases.
 * Mac has already an __mbstate_t which is different - so we keep it the way
 * was there.
 */
typedef struct {
  uint8_t __seq[4];
#ifdef __LP64__
  char __reserved_data[4];
#endif
}
#ifndef TARGET_MAC
    __mbstate_t;
    typedef __mbstate_t mbstate_t;
#else
    mbstate_t;
#endif

enum {
    WC_TYPE_INVALID = 0,
    WC_TYPE_ALNUM,
    WC_TYPE_ALPHA,
    WC_TYPE_BLANK,
    WC_TYPE_CNTRL,
    WC_TYPE_DIGIT,
    WC_TYPE_GRAPH,
    WC_TYPE_LOWER,
    WC_TYPE_PRINT,
    WC_TYPE_PUNCT,
    WC_TYPE_SPACE,
    WC_TYPE_UPPER,
    WC_TYPE_XDIGIT,
    WC_TYPE_MAX
};

typedef long wctype_t;

#define  WEOF        ((wint_t)(-1))

extern wint_t            btowc(int);
extern int               fwprintf(FILE *, const wchar_t *, ...);
extern int               fwscanf(FILE *, const wchar_t *, ...);
extern int               iswalnum(wint_t);
extern int               iswalpha(wint_t);
extern int               iswblank(wint_t);
extern int               iswcntrl(wint_t);
extern int               iswdigit(wint_t);
extern int               iswgraph(wint_t);
extern int               iswlower(wint_t);
extern int               iswprint(wint_t);
extern int               iswpunct(wint_t);
extern int               iswspace(wint_t);
extern int               iswupper(wint_t);
extern int               iswxdigit(wint_t);
extern int               iswctype(wint_t, wctype_t);
extern wint_t            fgetwc(FILE *);
extern wchar_t          *fgetws(wchar_t *, int, FILE *);
extern wint_t            fputwc(wchar_t, FILE *);
extern int               fputws(const wchar_t *, FILE *);
extern int               fwide(FILE *, int);
extern wint_t            getwc(FILE *);
extern wint_t            getwchar(void);
extern int               mbsinit(const mbstate_t *);
extern size_t            mbrlen(const char *, size_t, mbstate_t *);
extern size_t            mbrtowc(wchar_t *, const char *, size_t, mbstate_t *);
extern size_t mbsrtowcs(wchar_t*, const char**, size_t, mbstate_t*);
extern size_t mbsnrtowcs(wchar_t*, const char**, size_t, size_t, mbstate_t*);
extern size_t            mbstowcs(wchar_t *, const char *, size_t);
extern wint_t            putwc(wchar_t, FILE *);
extern wint_t            putwchar(wchar_t);
extern int               swprintf(wchar_t *, size_t, const wchar_t *, ...);
extern int               swscanf(const wchar_t *, const wchar_t *, ...);
extern wint_t            towlower(wint_t);
extern wint_t            towupper(wint_t);
extern wint_t            ungetwc(wint_t, FILE *);
extern int vfwprintf(FILE*, const wchar_t*, va_list);
extern int vfwscanf(FILE*, const wchar_t*, va_list);
extern int vswprintf(wchar_t*, size_t, const wchar_t*, va_list);
extern int vswscanf(const wchar_t*, const wchar_t*, va_list);
extern int vwprintf(const wchar_t*, va_list);
extern int vwscanf(const wchar_t*, va_list);
extern size_t            wcrtomb(char *, wchar_t, mbstate_t *);
extern int               wcscasecmp(const wchar_t *, const wchar_t *);
extern wchar_t          *wcscat(wchar_t *, const wchar_t *);
extern wchar_t          *wcschr(const wchar_t *, wchar_t);
extern int               wcscmp(const wchar_t *, const wchar_t *);
extern int               wcscoll(const wchar_t *, const wchar_t *);
extern wchar_t          *wcscpy(wchar_t *, const wchar_t *);
extern size_t            wcscspn(const wchar_t *, const wchar_t *);
extern size_t            wcsftime(wchar_t *, size_t, const wchar_t *, const struct tm *) __LIBC_ABI_PUBLIC__;
extern size_t            wcslen(const wchar_t *);
extern size_t            wcsnlen_s(const wchar_t *,size_t);
extern int               wcsncasecmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t          *wcsncat(wchar_t *, const wchar_t *, size_t);
extern int               wcsncmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t          *wcsncpy(wchar_t *, const wchar_t *, size_t);
extern size_t wcsnrtombs(char*, const wchar_t**, size_t, size_t, mbstate_t*);
extern wchar_t          *wcspbrk(const wchar_t *, const wchar_t *);
extern wchar_t          *wcsrchr(const wchar_t *, wchar_t);
extern size_t wcsrtombs(char*, const wchar_t**, size_t, mbstate_t*);
extern size_t            wcsspn(const wchar_t *, const wchar_t *);
extern wchar_t          *wcsstr(const wchar_t *, const wchar_t *);
extern double wcstod(const wchar_t*, wchar_t**);
extern float wcstof(const wchar_t*, wchar_t**);
extern wchar_t* wcstok(wchar_t*, const wchar_t*, wchar_t**);
extern long wcstol(const wchar_t*, wchar_t**, int);
extern long long wcstoll(const wchar_t*, wchar_t**, int);
extern long double wcstold(const wchar_t*, wchar_t**);
extern unsigned long wcstoul(const wchar_t*, wchar_t**, int);
extern unsigned long long wcstoull(const wchar_t*, wchar_t**, int);
extern int               wcswidth(const wchar_t *, size_t);
extern size_t            wcsxfrm(wchar_t *, const wchar_t *, size_t);
extern int               wctob(wint_t);
extern wctype_t          wctype(const char *);
extern int               wcwidth(wchar_t);
extern wchar_t          *wmemchr(const wchar_t *, wchar_t, size_t);
extern int               wmemcmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t          *wmemcpy(wchar_t *, const wchar_t *, size_t);
extern wchar_t          *wmemmove(wchar_t *, const wchar_t *, size_t);
extern wchar_t          *wmemset(wchar_t *, wchar_t, size_t);
extern int               wprintf(const wchar_t *, ...);
extern int               wscanf(const wchar_t *, ...);

extern long long          wcstoll_l(const wchar_t *, wchar_t **, size_t, locale_t);
extern unsigned long long wcstoull_l(const wchar_t *, wchar_t **, size_t, locale_t);
extern long double        wcstold_l(const wchar_t *, wchar_t **, locale_t );

extern int    wcscoll_l(const wchar_t *, const wchar_t *, locale_t);
extern size_t wcsxfrm_l(wchar_t *, const wchar_t *, size_t, locale_t);

extern size_t wcslcat(wchar_t*, const wchar_t*, size_t);
extern size_t wcslcpy(wchar_t*, const wchar_t*, size_t);

typedef void *wctrans_t;
extern wint_t towctrans(wint_t, wctrans_t);
extern wctrans_t wctrans(const char*);

#if __POSIX_VISIBLE >= 200809
FILE* open_wmemstream(wchar_t**, size_t*);
wchar_t* wcsdup(const wchar_t*);
size_t wcsnlen(const wchar_t*, size_t);
#endif

__END_DECLS

#endif /* _WCHAR_H_ */
