id summary reporter owner description type status milestone component version severity resolution keywords cc 12642 Float parser slow without float.h mihai.babiac@… Joel de Guzman "The scaling function for the float/double parser has a fast specialization which is only enabled if the doubles respect standard IEEE-754. This is checked through the preprocessor macro DBL_MAX_10_EXP which is defined in float.h. I think this file should be included in the header or this should at least be mentioned in the docs. https://github.com/boostorg/spirit/blob/develop/include/boost/spirit/home/support/detail/pow10.hpp#L47" Bugs closed To Be Determined spirit Boost 1.61.0 Optimization fixed float float.h cfloat