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Prints invalid function pointer from SDL_GL_GetProcAddress

main.cpp (text/x-c++src), 1.09 KB, created by danhath on 2013-12-31 18:23:19 UTC

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Creator: danhath

Created: 2013-12-31 18:23:19 UTC

Size: 1.09 KB

patch

obsolete

>//File: main.cpp
>//This program was compiled
>//using the following simple
>//makefile:
>//target:
>//  g++ -o main.o -c main.cpp
>//  g++ -o test.exe main.o -lSDL -lGL -lSDLmain
>
>#include <SDL/SDL.h>
>#include <SDL/SDL_opengl.h>
>
>#include <iostream>
>#include <cstdlib>
>using std::cout;
>
>int main(int argc, char ** argv) {
>    //Initializing SDL itself:
>    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
>        cout << "Error: Could not initialize SDL\n";
>        exit(0);
>    }
>
>    //Creating the surface.
>    Uint32 flags =
>        SDL_DOUBLEBUF | SDL_OPENGL |
>        SDL_ANYFORMAT | SDL_HWSURFACE;
>    SDL_Surface * screen;
>    screen = SDL_SetVideoMode(800, 600, 32, flags);
>    SDL_WM_SetCaption("test", NULL);
>
>    //Illustrating the SDL_GL_GetProcAddress bug:
>
>    //Returns a valid function pointer.  This is correct:
>    void * func_ptr1 = SDL_GL_GetProcAddress("glColor3f");
>    cout << (long)func_ptr1 << "\n";
>
>    //Returns a NON null pointer! This is the bug:
>    void * func_ptr2 = SDL_GL_GetProcAddress("glThisCannotBeAGLFunctionName");
>    cout << (long)func_ptr2 << "\n";
>
>    return 0;
>}
>

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We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.