Method decodeFloat64

internal/decoder/data_decoder.go:193–207

DecodeFloat64 decodes a 64-bit float from the given offset.

(size, offset uint)

// DecodeFloat64 decodes a 64-bit float from the given offset.
func (d *DataDecoder) decodeFloat64(size, offset uint) (float64, uint, error) {
	if size != 8 {
		return 0, 0, mmdberrors.NewInvalidDatabaseError(
			"the MaxMind DB file's data section contains bad data (float 64 size of %v)",
			size,
		)
	}
	if offset+size > uint(len(d.buffer)) {
		return 0, 0, mmdberrors.NewOffsetError()
	}

	newOffset := offset + size
	bits := binary.BigEndian.Uint64(d.buffer[offset:newOffset])
	return math.Float64frombits(bits), newOffset, nil
}

// DecodeFloat32 decodes a 32-bit float from the given offset.
func (d *DataDecoder) decodeFloat32(size, offset uint) (float32, uint, error) {