/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/


#ifdef GL_ES
precision mediump float;
#endif
varying vec4 color;

void main (void)
{
	int m = +23;
	int k = -m;
	bool a = false;
	bool b = !a;
	float gray;
	if( (m==23) && (k==-23) && (b) )
	gray=1.0;
	else gray=0.0;
	gl_FragColor = vec4(gray, gray, gray, 1.0);
}