1((function isinf
2   (signature bool
3     (parameters
4       (declare (in) float x))
5     ((return (expression bool == (expression float abs (var_ref x)) (constant float (+INF))))))
6   (signature bvec2
7     (parameters
8       (declare (in) vec2 x))
9     ((return (expression bvec2 == (expression vec2 abs (var_ref x)) (constant vec2 (+INF +INF))))))
10   (signature bvec3
11     (parameters
12       (declare (in) vec3 x))
13     ((return (expression bvec3 == (expression vec3 abs (var_ref x)) (constant vec3 (+INF +INF +INF))))))
14   (signature bvec4
15     (parameters
16       (declare (in) vec4 x))
17     ((return (expression bvec4 == (expression vec4 abs (var_ref x)) (constant vec4 (+INF +INF +INF +INF))))))))
18