Function DecodeFloatAscending

pkg/util/encoding/float.go:61–86

DecodeFloatAscending returns the remaining byte slice after decoding and the decoded float64 from buf.

(buf []byte)

// DecodeFloatAscending returns the remaining byte slice after decoding and the decoded
// float64 from buf.
func DecodeFloatAscending(buf []byte) ([]byte, float64, error) {
	if PeekType(buf) != Float {
		return buf, 0, errors.Errorf("did not find marker")
	}
	switch buf[0] {
	case floatNaN, floatNaNDesc:
		return buf[1:], math.NaN(), nil
	case floatNeg:
		b, u, err := DecodeUint64Ascending(buf[1:])
		if err != nil {
			return b, 0, err
		}
		u = ^u
		return b, math.Float64frombits(u), nil
	case floatZero:
		return buf[1:], 0, nil
	case floatPos:
		b, u, err := DecodeUint64Ascending(buf[1:])
		if err != nil {
			return b, 0, err
		}
		return b, math.Float64frombits(u), nil
	default:
		return nil, 0, errors.Errorf("unknown prefix of the encoded byte slice: %q", buf)
	}
}

// DecodeFloatDescending decodes floats encoded with EncodeFloatDescending.
func DecodeFloatDescending(buf []byte) ([]byte, float64, error) {