Function wcsnicomp

Libraries/unrar/unicode.cpp:446–471

int wcsnicomp(const wchar *s1,const wchar *s2,size_t n)
{
#ifdef _WIN_ALL
  // If we specify 'n' exceeding the actual string length, CompareString goes
  // beyond the trailing zero and compares garbage. So we need to limit 'n'
  // to real string length.
  size_t l1=Min(wcslen(s1)+1,n);
  size_t l2=Min(wcslen(s2)+1,n);
  return CompareStringW(LOCALE_USER_DEFAULT,NORM_IGNORECASE|SORT_STRINGSORT,s1,(int)l1,s2,(int)l2)-2;
#else
  if (n==0)
    return 0;
  while (true)
  {
    wchar u1 = towupper(*s1);
    wchar u2 = towupper(*s2);
    if (u1 != u2)
      return u1 < u2 ? -1 : 1;
    if (*s1==0 || --n==0)
      break;
    s1++;
    s2++;
  }
  return 0;
#endif
}


const wchar_t* wcscasestr(const wchar_t *str, const wchar_t *search)