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Lines Matching refs:zero

79  *	+0 ** -(anything except 0, NaN)  is +INF and signal DIV-BY-ZERO;
121 static const double zero=0.0, one=1.0, two=2.0, negone= -1.0;
142 	if (y==zero)
152 			return ((y<0)? zero : ((x<zero)? y-y : y));
154 			return ((y>0)? zero : ((x<0)? y-y : -y));
165 	else if ( (t=drem(y,two)) == zero)
173 	else if (x==zero)	/* x is -0 */
174 		return ((y>zero)? -x : one/(-x));
176 		return (zero/zero);
188 	if (x == zero) {
189 		if (y > zero)
190 			return (zero);
199 		if (y < zero)
200 			return (zero);