Function kwsysString_tolower

Source/kwsys/String.c:110–115

}

unsigned char kwsysString_tolower(char c)
{
  unsigned char const uc = (unsigned char)c;
  /* Push 'A-Z' to 230-255 so integer division by 230 is 1 only for them.  */
  return (unsigned char)(uc ^ ((((uc + 230 - 'A') & 0xFF) / 230) << 5));
}

unsigned char kwsysString_toupper(char c)
{