C++ demo函数代码示例

int main(int ac, const char *av[])
{
    if (ac == 2) {
        const cv::Mat image = cv::imread(av[1]);
        if (image.data) {
            std::cout << "Press a key to quit." << std::endl;
            DemoDisplay demo(image); demo();
            std::cout << "Initial threshold is: " << demo.threshold()
                      << std::endl;
            cv::waitKey(0);
            std::cout << "Final threshold was: " << demo.threshold()
                      << std::endl;
            return 0;
        }
    }
    std::cerr << av[0] << ": Demonstrate bounding polygonal contours."
              << std::endl << std::endl
              << "Usage: " << av[0] << " <image-file>" << std::endl
              << std::endl
              << "Where: <image-file> is the name of an image file."
              << std::endl << std::endl
              << "Example: " << av[0] << " ../resources/jets.jpg"
              << std::endl << std::endl;
    return 1;
}

int main(int ac, const char *av[])
{
    if (ac == 2) {
        const cv::Mat image = cv::imread(av[1]);
        if (image.data) {
            std::cout << std::endl << av[0] << ": Press any key to quit."
                      << std::endl << std::endl;
            DemoDisplay demo(image); demo();
            std::cout << av[0] << ": Initial maximum Corners is: "
                      << demo.maxCorners()<< std::endl << std::endl;
            cv::waitKey(0);
            std::cout << av[0] << ": Final maximum Corners was: "
                      << demo.maxCorners() << std::endl << std::endl;
            return 0;
        }
    }
    std::cerr << av[0] << ": Demonstrate Shi-Tomasi corner finding."
              << std::endl << std::endl
              << "Usage: " << av[0] << " <image-file>" << std::endl
              << std::endl
              << "Where: <image-file> has an image with some corners in it."
              << std::endl << std::endl
              << "Example: " << av[0] << " ../resources/building.jpg"
              << std::endl << std::endl;
    return 1;
}

int main() {
  test();
  demo(32);
  demo(80);
  demo(512);
  printf("We are feeding ascii so it is always going to be ok.\n");
}

int main() {
  demo(31);
  demo(1500);
  demo(15000);
  demopoweroftwo(32);
  demopoweroftwo(4096);
  demopoweroftwo(65536);
}

int main() {
    size_t x ;
    for(x=6; x<2048; x*=2 ) {
        printf("checking input size = %zu \n ",x);
        if(check(x,1024 * 1024)) return -1;
        printf("Ok!\n ");
    }
    demo(1024,1024 * 1024);
    demo(1024 * 1024,1024 * 1024);
    demo(32 * 1024 * 1024,1024 * 1024);
    return 0;
}

int main()
{
	float p = 0.5F, i = 0.0F, d = 0.0F;

	PIDDemo demo(p, i, d);	
	demo.SetPosition(140);
	demo.SetSetPoint(355);

	for (int i = 0; i < 40; i++)
	{
		if (demo.OnTarget())
			break;

		printf("%2d: Output: %.3f Position: %.3f (error: %.3f, goal: %.3f)\n",
			i,
			demo.GetOutput(), demo.GetPosition(),
			demo.m_controller.GetError(),
			demo.m_controller.GetSetpoint());

		Notifier::Pulse();

		
	}		

	return 0;
}

int main( int argc, char *argv[])
{
    const char *libdatadir;
    char conjFN[512], verbsFN[512];
    int exit_status;

    if (argc < 2)
    {
        printf("conjugator.c: demo of the C API of Verbiste\n");
        printf("Usage: conjugator VERB\n");
        printf("Note: this program expects Latin-1 and writes Latin-1.\n");
        return EXIT_FAILURE;
    }

    setlocale(LC_CTYPE, "");  // necessary on Solaris
    libdatadir = getenv("LIBDATADIR");
    if (libdatadir == NULL)
        libdatadir = LIBDATADIR;

    snprintf(conjFN, sizeof(conjFN), "%s/conjugation-fr.xml", libdatadir);
    snprintf(verbsFN, sizeof(verbsFN), "%s/verbs-fr.xml", libdatadir);

    if (verbiste_init(conjFN, verbsFN, "fr") != 0)
    {
        printf("conjugator.c: failed to initialize Verbiste.\n");
        return EXIT_FAILURE;
    }

    exit_status = demo(argv[1]);

    verbiste_close();

    return exit_status;
}

int main(const int argc, const char* args[])
{
	gamePtr demo(new Pacman());
	demo->start();

	return 0;
}

int main(void)
{
    configure_teensy();
    configure_LEDs();
    configure_usb();

    int16_t lastcmd = '\0', cmd = '\0';

    while (1)
    {
        wait_for_usb_connection();

        while (1)
        {
            cmd = usb_serial_getchar();

            if(is_valid_control_key(cmd))
            {
                if(cmd == '+') adjust_speed(-10); // Speed up == less time.
                else if(cmd == '-') adjust_speed(10);
            }

            if( is_valid_cmd(cmd) )
            {
                lastcmd = cmd;
            }

            if(lastcmd == 'k') knight_rider();
            else if(lastcmd == 's') step();
            else if(lastcmd == 'f') follow();
            else if(lastcmd == '0') nop();
            else demo();
        }
    }
}

void run_yolo(int argc, char **argv)
{
	int dont_show = find_arg(argc, argv, "-dont_show");
	int http_stream_port = find_int_arg(argc, argv, "-http_port", -1);
	char *out_filename = find_char_arg(argc, argv, "-out_filename", 0);
    char *prefix = find_char_arg(argc, argv, "-prefix", 0);
    float thresh = find_float_arg(argc, argv, "-thresh", .2);
	float hier_thresh = find_float_arg(argc, argv, "-hier", .5);
    int cam_index = find_int_arg(argc, argv, "-c", 0);
    int frame_skip = find_int_arg(argc, argv, "-s", 0);
	int ext_output = find_arg(argc, argv, "-ext_output");
    if(argc < 4){
        fprintf(stderr, "usage: %s %s [train/test/valid] [cfg] [weights (optional)]\n", argv[0], argv[1]);
        return;
    }

    char *cfg = argv[3];
    char *weights = (argc > 4) ? argv[4] : 0;
    char *filename = (argc > 5) ? argv[5]: 0;
    if(0==strcmp(argv[2], "test")) test_yolo(cfg, weights, filename, thresh);
    else if(0==strcmp(argv[2], "train")) train_yolo(cfg, weights);
    else if(0==strcmp(argv[2], "valid")) validate_yolo(cfg, weights);
    else if(0==strcmp(argv[2], "recall")) validate_yolo_recall(cfg, weights);
    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, hier_thresh, cam_index, filename, voc_names, 20, frame_skip,
		prefix, out_filename, http_stream_port, dont_show, ext_output);
}

int main() {
  info = carp_connect();
  carp_reset();
  demo();
  carp_disconnect();
  return 0;
}

void run_coco(int argc, char **argv)
{
    int i;
    for(i = 0; i < 80; ++i){
        char buff[256];
        sprintf(buff, "data/labels/%s.png", coco_classes[i]);
        coco_labels[i] = load_image_color(buff, 0, 0);
    }
    float thresh = find_float_arg(argc, argv, "-thresh", .2);
    int cam_index = find_int_arg(argc, argv, "-c", 0);
    int frame_skip = find_int_arg(argc, argv, "-s", 0);

    if(argc < 4){
        fprintf(stderr, "usage: %s %s [train/test/valid] [cfg] [weights (optional)]\n", argv[0], argv[1]);
        return;
    }

    char *cfg = argv[3];
    char *weights = (argc > 4) ? argv[4] : 0;
    char *filename = (argc > 5) ? argv[5]: 0;
    if(0==strcmp(argv[2], "test")) test_coco(cfg, weights, filename, thresh);
    else if(0==strcmp(argv[2], "train")) train_coco(cfg, weights);
    else if(0==strcmp(argv[2], "valid")) validate_coco(cfg, weights);
    else if(0==strcmp(argv[2], "recall")) validate_coco_recall(cfg, weights);
    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, cam_index, filename, coco_classes, coco_labels, 80, frame_skip);
}

int main(){
    int converge = 0;
    int k = 0;
    while(!converge){
        printf("Value Iteration %d ...", k++);
        converge = 1;
        for(unsigned i = 0; i < STATE_SPACE; i++){
            state_t state;
            state.key = i;
            if(!validate_state(state)) continue;
            value_update(state, k);
            if(vnext[state.key] - v[state.key] > error_tolerance || vnext[state.key] - v[state.key] < -error_tolerance) converge = 0;
        }
        printf("\b\b\b\n");
        memcpy(v, vnext, sizeof(v));
    }
    FILE* f = fopen("output.txt", "wb");
    const char* action_name[] = {
        "wait", "bt  ", "rb  ", "ws  ",
    };
    for(unsigned k = 0; k < STATE_SPACE; k++){
        state_t state;
        state.key = k;
        if(!validate_state(state)) continue;
        if(!state.state.gcd)
        fprintf(f, "RBST %d, BSST %d, ERRM %d, BTCD %d, RAGE %d - %s %.3f\r\n",
                state.state.rb_st, state.state.bs_st, state.state.er_rm, state.state.bt_cd, state.state.rage,
                action_name[pi[state.key]], v[state.key]);
    }

    demo();
}

int main( void )
{
	srand( time( NULL ) );
	setup_screen();
	demo();
	cleanup_screen();
	return 0;
}

int main(void)
{
   printf("\nBefore calling demo(), x = %d and y = %d.", x, y);
   demo();
   printf("\nAfter calling demo(), x = %d and y = %d.\n", x, y);
 
   return 0;
}