return bad("no core type")
	case *Basic:
		if isString(typ) {
			return Typ[Int], universeRune, "", false, true // use 'rune' name
		}
		if isInteger(typ) {
			// untyped numeric constants may be representable as integer values
			if allowVersion != nil && !allowVersion(go1_22) {
				return bad("requires go1.22 or later")
			}
			return orig, nil, "", false, true
		}
	case *Array:

	// See issue 36399 and 36400.
	// Encodings of +inf, -inf, and -0 are fine.
	{name: "Const32F", aux: "Float32"}, // value is math.Float64frombits(uint64(auxint)) and is exactly representable as float 32
	{name: "Const64F", aux: "Float64"}, // value is math.Float64frombits(uint64(auxint))
	{name: "ConstInterface"},           // nil interface
	{name: "ConstSlice"},               // nil slice

This op determines the maximum scale_factor that would map the initial
[input_min, input_max] range to a range that lies within the representable
quantized range.

It determines the scale from one of input_min and input_max, then updates the
other one to maximize the representable range.

e.g.

*   if the output is signed, num_bits = 8, [input_min, input_max] = [-10.0,

        `tf.GradientTape` inside a `tf.function`.
    *   Changed the default step size in `gradient_checker_v2.compute_gradients`
        to be exactly representable as a binary floating point numbers. This
        avoids poluting gradient approximations needlessly, which is some cases
        leads to false negatives in op gradient tests.