FLOATS_32_BIT = 1
F_4byteFloat = 2
F_8byteFloat = 6
F_10byteFloat = 8
MaxSigDigits = 18
__LTOAMAX__ = 32
__XCVTDIG__ = 40
__XCVTMAX__ = 47
__CVTMAX__ = 48
NAN_number = 32766
INF_number = 32767