is_pzero Function (ROM Call 0x301)

AMS 1.01 or higher math.h, timath.h

short is_pzero (float x);

Checks whether the argument is positive zero.

is_pzero returns TRUE if x is a positive zero (i.e. infinitely small positive quantity, see POSITIVE_ZERO), else returns FALSE. This function is an alias for TIOS function originally called is_float_positive_zero.


Used by: push_sign