Should dmd have given me a warning at least?

[WhatMeWorry via Digitalmars-d-learn]

// the following two lines compile cleanly but when executed, I 
get
// D:\Projects\Derelict>02_SimpleOpenGL_3_3_program.exe
// object.Error: Access Violation
// ----------------
string glShadingLangVer = 
to!string(glGetString(GL_SHADING_LANGUAGE_VERSION));
writeln("glShadingLangVer is ", glShadingLangVer);




glGetString has the following signature:

const GLubyte* glGetString(GLenum name);

I presume the const is causing the problem.  Is there a work 
around?

Thanks.