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Function rsign - determine the sign of a REAL number
Syntax int rsign(struct REAL rx);
Prototype in real.h
Remarks rsign will determine the sign of rx. Zero is
considered positive.
Refer to the section SIMULATED FP MATH for further
details.
Return value returns -1 if rx is negative, otherwise 1.
See also _r_minpre, _rmatherr
radd(), rceil(), rdiv(), rfloor(), rnegate(),
rnormalize(), rsub()
See Also:
rnegate()
Simulated FP
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