Function wcsncpyz

Libraries/unrar/strfn.cpp:297–305

Safe copy: copies maxlen-1 max and for maxlen>0 returns zero terminated dest.

// Safe copy: copies maxlen-1 max and for maxlen>0 returns zero terminated dest.
void wcsncpyz(wchar *dest, const wchar *src, size_t maxlen)
{
  if (maxlen>0)
  {
    while (--maxlen>0 && *src!=0)
      *dest++=*src++;
    *dest=0;
  }
}


// Safe append: resulting dest length cannot exceed maxlen and dest