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#include <GL/glew.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>

/* for context creation */
#include <SDL/SDL.h>

int main()
{
    assert(SDL_Init(SDL_INIT_VIDEO) == 0);
    assert(SDL_SetVideoMode(640, 480, 16, SDL_OPENGL) != NULL);

    assert(glewInit() == GLEW_OK);
    assert(glewGetString(0) == NULL);
    assert(!strcmp((const char*)glewGetString(1), "1.10.0"));
    assert(!strcmp((const char*)glewGetString(2), "1"));
    assert(!strcmp((const char*)glewGetString(3), "10"));
    assert(!strcmp((const char*)glewGetString(4), "0"));

    for (int i = 0; i < 8; ++i) {
        assert(glewGetErrorString(i) != NULL);
    }

    assert(glewGetExtension("EXT_unexistant") == 0);
    assert(glewIsSupported("EXT_unexistant EXT_foobar") == 0);

    /* we can't be sure about which extension exists, so lets do test on
     * some of the common ones */
    if (GLEW_EXT_texture_filter_anisotropic) {
        assert(glewGetExtension("EXT_texture_filter_anisotropic") == 1);
        assert(glewGetExtension("GL_EXT_texture_filter_anisotropic") == 1);
    }

    if (GLEW_EXT_framebuffer_object) {
        assert(glewGetExtension("EXT_framebuffer_object") == 1);
        assert(glewGetExtension("GL_EXT_framebuffer_object") == 1);
    }

    if (GLEW_EXT_texture_filter_anisotropic &&
        GLEW_EXT_framebuffer_object) {
        assert(glewIsSupported("EXT_texture_filter_anisotropic EXT_framebuffer_object") == 1);
        assert(glewIsSupported("GL_EXT_texture_filter_anisotropic GL_EXT_framebuffer_object") == 1);
    }

#ifdef REPORT_RESULT
    int result = 1;
    REPORT_RESULT();
#endif
    return 0;
}