resources/sksl/workarounds/FractNegative.sksl - skia - Git at Google

 /*#pragma settings CannotUseFractForNegativeValues*/

 void main() {
     float x = -42.0;
     sk_FragColor.r = half(fract(x));
 }
	/#pragma settings CannotUseFractForNegativeValues/

	void main() {
	float x = -42.0;
	sk_FragColor.r = half(fract(x));
	}