enum NumberInfoRequired header: <Eclog/NumberInfo.h>
number_info_none
Number info: none.
number_info_has_sign
Number info: has sign.
number_info_has_neg_sign
Number info: has negative sign.
number_info_has_frac
Number info: has fractional.
number_info_has_exp
Number info: has exponent.
number_info_inf
Number info: infinity.
number_info_nan
Number info: not a number.