float.h

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clear87 Retrieves then clears the floating point status flags.
control87 Retrieves then clears the floating point status flags.
fpreset Obtains or changes the precision, rounding, infinity mode or floating point exception mask.
status87 Reinitializes the floating point processor.
statusword Retrieves the floating point status flags.
fpmacros Macros that define the characteristics of the floating point representations.
fpcontrol Macros that are used to control the floating point processor.
fpsignal Macros that are used for signalling.
infinity Definition of infinity.
excpcodes Floating point exception codes.


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