#version 310 es
precision mediump float;
precision highp int;
struct Structy
{
vec4 c;
};
layout(location = 0) out vec4 FragColor;
void foo2(out Structy f)
f.c = vec4(10.0);
}
Structy foo()
Structy param;
foo2(param);
Structy f = param;
return f;
void main()
Structy s = foo();
FragColor = s.c;