#pragma MSP stage(vertex)
layout(location=0) in vec4 position;
float func()
{
}
void main()
{
	gl_Position = position*func();
	return 0;
}

/* Expected error:
<test>:3: Missing return statement at the end of a function not returning 'void'
<test>:9: Return expression type 'int' is incompatible with declared return type 'void'
*/