6 * From page 19 (page 25 of the PDF) of the GLSL 1.20 spec:
8 * "When an array size is specified in a declaration, it must be an
9 * integral constant expression (see Section 4.3.3 "Constant Expressions")
15 uniform vec4 [a.length()] b;
17 void main() { gl_Position = vec4(0.0); }