GCC, stringification, and inline GLSL?

Question

I\'d like to declare GLSL shader strings inline using macro stringification:

#define STRINGIFY(A)  #A
const GLchar* vert = STRINGIFY(
#version 120\\n
attribu         


        

Answer 1

Unfortunately, having preprocessor directives in the argument of a macro is undefined, so you can't do this directly. But as long as none of your shaders need preprocessor directives other than #version, you could do something like:

#define GLSL(version, shader)  "#version " #version "\n" #shader

const GLchar* vert = GLSL(120,
    attribute vec2 position;
    void main()
    {
        gl_Position = vec4( position, 0.0, 1.0 );
    }
);