Function glad_gl_load_GL_ARB_copy_buffer

examples/include/gl.h:6251–6254

    glad_glViewport = (PFNGLVIEWPORTPROC) load(userptr, "glViewport");
}
static void glad_gl_load_GL_ARB_copy_buffer( GLADuserptrloadfunc load, void* userptr) {
    if(!GLAD_GL_ARB_copy_buffer) return;
    glad_glCopyBufferSubData = (PFNGLCOPYBUFFERSUBDATAPROC) load(userptr, "glCopyBufferSubData");
}
static void glad_gl_load_GL_ARB_framebuffer_object( GLADuserptrloadfunc load, void* userptr) {
    if(!GLAD_GL_ARB_framebuffer_object) return;
    glad_glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC) load(userptr, "glBindFramebuffer");