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signum_Float | Function (ROM Call 0x312) |
AMS 1.01 or higher | estack.h |
long signum_Float (CESI ptr); |
Finds the signum of a floating point entry.
signum_Float finds the signum of the floating point entry pointed to by ptr (i.e. returns 1 if the entry is positive, -1 if it is negative, 0 if it is zero). If the entry is not a floating point number, the result is garbage.