4 * require_extensions: GL_ARB_shading_language_420pack
7 * From the GL_ARB_shading_language_420pack spec:
9 * " Add the following parameter qualifier
13 * const for function parameters that cannot be written to"
15 * Test that const-qualifying a function parameter works.
18 #extension GL_ARB_shading_language_420pack: enable
19 void f(const float x) {}