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#ifndef HEADER_CURL_MULTIBYTE_H 
#define HEADER_CURL_MULTIBYTE_H 
/*************************************************************************** 
 *                                  _   _ ____  _ 
 *  Project                     ___| | | |  _ \| | 
 *                             / __| | | | |_) | | 
 *                            | (__| |_| |  _ <| |___ 
 *                             \___|\___/|_| \_\_____| 
 * 
 * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
 * 
 * This software is licensed as described in the file COPYING, which 
 * you should have received as part of this distribution. The terms 
 * are also available at https://curl.se/docs/copyright.html.
 * 
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 
 * copies of the Software, and permit persons to whom the Software is 
 * furnished to do so, under the terms of the COPYING file. 
 * 
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 
 * KIND, either express or implied. 
 * 
 ***************************************************************************/ 
#include "curl_setup.h" 
 
#if defined(WIN32)
 
 /* 
  * MultiByte conversions using Windows kernel32 library. 
  */ 
 
wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8);
char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w);
 
#endif /* WIN32 */
 
/* 
 * Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8()
 * and curlx_unicodefree() main purpose is to minimize the number of
 * preprocessor conditional directives needed by code using these 
 * to differentiate UNICODE from non-UNICODE builds. 
 * 
 * When building with UNICODE defined, these two macros
 * curlx_convert_UTF8_to_tchar() and curlx_convert_tchar_to_UTF8()
 * return a pointer to a newly allocated memory area holding result. 
 * When the result is no longer needed, allocated memory is intended 
 * to be free'ed with curlx_unicodefree().
 * 
 * When building without UNICODE defined, this macros 
 * curlx_convert_UTF8_to_tchar() and curlx_convert_tchar_to_UTF8()
 * return the pointer received as argument. curlx_unicodefree() does
 * no actual free'ing of this pointer it is simply set to NULL. 
 */ 
 
#if defined(UNICODE) && defined(WIN32)
 
#define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr))
#define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr))
#define curlx_unicodefree(ptr)                          \
  do {                                                  \
    if(ptr) {                                           \
      (free)(ptr);                                        \
      (ptr) = NULL;                                     \
    }                                                   \
  } while(0)
 
typedef union { 
  unsigned short       *tchar_ptr; 
  const unsigned short *const_tchar_ptr; 
  unsigned short       *tbyte_ptr; 
  const unsigned short *const_tbyte_ptr; 
} xcharp_u; 
 
#else 
 
#define curlx_convert_UTF8_to_tchar(ptr) (ptr)
#define curlx_convert_tchar_to_UTF8(ptr) (ptr)
#define curlx_unicodefree(ptr) \
  do {(ptr) = NULL;} while(0)
 
typedef union { 
  char                *tchar_ptr; 
  const char          *const_tchar_ptr; 
  unsigned char       *tbyte_ptr; 
  const unsigned char *const_tbyte_ptr; 
} xcharp_u; 
 
#endif /* UNICODE && WIN32 */
 
#endif /* HEADER_CURL_MULTIBYTE_H */