C:输入if语句后如何自增

Question

当计数器达到值 51 时，我尝试输入 if 语句，然后递增 if 语句内的计数器，使其不再为 true:

void imu_raw_handler (const lcm_recv_buf_t *rbuf, const char *channel,
               const imu_raw_t *msg, void *userdata) {
    for(counter = 1; counter < 51; counter++)
    {
        gyro_roll = (gyro_roll + gyro_roll_old*(counter-1))/counter;
        gyro_pitch = (gyro_pitch + gyro_pitch_old*(counter-1))/counter;
        gyro_yaw = (gyro_yaw + gyro_yaw_old*(counter-1))/counter;
        accel_x = (accel_x + accel_x_old*(counter-1))/counter;
        accel_y = (accel_y + accel_y_old*(counter-1))/counter;
        accel_z = (accel_z + accel_z_old*(counter-1))/counter;
    }
    if (counter == 51){
    // set zero points
        axo = accel_x;
        ayo = accel_y;
        azo = accel_z;
        gro = gyro_roll;
        gpo = gyro_pitch;
        gyo = gyro_yaw;
        printf("Ready for Takeoff\n");
        counter++;
    }
}

编辑:我的主要功能如下所示。只要它正在运行，它就应该订阅流主题。我将计数器定义为全局变量。

int main()
{
    lcm_t *lcm = lcm_create(NULL);

    imu_raw_t_subscribe(lcm, "IMU_RAW", imu_raw_handler, NULL);
    // Enter read loop
    while (1) {
        if(!lcm_handle_timeout(lcm, 1000)) {
            printf("Failed read from IMU_RAW channel\n");
        }
    }

    lcm_destroy(lcm);
}

但这将永远重复打印我的消息，而不是使 counter = 52 并且不再发生。为什么这不起作用？

Answer 1

问题很可能存在于这些代码片段之外。请检查其他地方是否没有打印。