}

    /** Returns true if the bit changed value. */
    boolean set(long bitIndex) {
      if (get(bitIndex)) {
        return false;
      }

      int longIndex = (int) (bitIndex >>> LONG_ADDRESSABLE_BITS);
      long mask = 1L << bitIndex; // only cares about low 6 bits of bitIndex

      long oldValue;
      long newValue;
      do {
        oldValue = data.get(longIndex);

    }

    /** Returns true if the bit changed value. */
    boolean set(long bitIndex) {
      if (get(bitIndex)) {
        return false;
      }

      int longIndex = (int) (bitIndex >>> LONG_ADDRESSABLE_BITS);
      long mask = 1L << bitIndex; // only cares about low 6 bits of bitIndex

      long oldValue;
      long newValue;
      do {
        oldValue = data.get(longIndex);

		Printf("%*s", 4.5, "hi"):  %!(BADWIDTH)hi
		Printf("%.*s", 4.5, "hi"): %!(BADPREC)hi
	Invalid or invalid use of argument index: %!(BADINDEX)
		Printf("%*[2]d", 7):       %!d(BADINDEX)
		Printf("%.[2]d", 7):       %!d(BADINDEX)

All errors begin with the string "%!" followed sometimes
by a single character (the verb) and end with a parenthesized
description.

	hrHRIndex         ID = 371
	hsbIndex          ID = 372
	hsbDEIndex        ID = 373
	huIndex           ID = 374
	huHUIndex         ID = 375
	hyIndex           ID = 376
	hyAMIndex         ID = 377
	idIndex           ID = 378
	idIDIndex         ID = 379
	igIndex           ID = 380
	igNGIndex         ID = 381
	iiIndex           ID = 382
	iiCNIndex         ID = 383
	inIndex           ID = 384

	nilAngleString    = "<nil>"
	nilParenString    = "(nil)"
	nilString         = "nil"
	mapString         = "map["
	percentBangString = "%!"
	missingString     = "(MISSING)"
	badIndexString    = "(BADINDEX)"
	panicString       = "(PANIC="
	extraString       = "%!(EXTRA "
	badWidthString    = "%!(BADWIDTH)"
	badPrecString     = "%!(BADPREC)"
	noVerbString      = "%!(NOVERB)"
	invReflectString  = "<invalid reflect.Value>"