const math/big.ToPositiveInf

3 uses

	math/big (current package)
		float.go#L141: 	ToPositiveInf                     // == IEEE 754-2008 roundTowardPositive
		float.go#L469: 		case ToPositiveInf:
		roundingmode_string.go#L16: 	_ = x[ToPositiveInf-5]