text: //
  //  Upcaste Performance Libraries
  //  Copyright (C) 2012-2013 Jesse W. Towner
  //
  //  Permission is hereby granted, free of charge, to any person obtaining
  //  a copy of this software and associated documentation files (the
  //  "Software"), to deal in the Software without restriction, including
  //  without limitation the rights to use, copy, modify, merge, publish,
  //  distribute, sublicense, and/or sell copies of the Software, and to
  //  permit persons to whom the Software is furnished to do so, subject to
  //  the following conditions:
  //
  //  The above copyright notice and this permission notice shall be
  //  included in all copies or substantial portions of the Software.
  //
  //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  //  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  //  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  //  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  //  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  //  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  //  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  //
  
  #include <up/prolog.hpp>
  
  #ifdef UP_HAS_STDC_WCHAR
  
  #include "../filesystem_internal.hpp"
  
  namespace up { namespace filesystem
  {
      LIBUPCOREAPI UPNONNULLALL
      int copy_symlink(wchar_t const* existing_symlink, wchar_t const* new_symlink) noexcept {
          char* native_existing = transcode(existing_symlink);
          if (!native_existing) {
              return -1;
          }
  
          char* native_new = transcode(new_symlink);
          if (!native_new) {
              free(native_existing);
              return -1;
          }
  
          int result = copy_symlink(native_existing, native_new);
          free(native_new);
          free(native_existing);
          return result;
      }
  }}
  
  #endif
  