c++ - Qt-如何将 QByteArray 转换为结构

Question

我需要将 QByteArray 转换为结构。我有这样的结构:

   struct mavlink_attitude_t
      {
          /// <summary> Timestamp (milliseconds since system boot) </summary>
            quint32 time_boot_ms;
              /// <summary> Roll angle (rad, -pi..+pi) </summary>
            float roll;
              /// <summary> Pitch angle (rad, -pi..+pi) </summary>
            float pitch;
              /// <summary> Yaw angle (rad, -pi..+pi) </summary>
            float yaw;
              /// <summary> Roll angular speed (rad/s) </summary>
            float rollspeed;
              /// <summary> Pitch angular speed (rad/s) </summary>
            float pitchspeed;
              /// <summary> Yaw angular speed (rad/s) </summary>
            float yawspeed;

      };

我有一个来自串口的QbyteArray。我已经使用了 union，但我认为它不能用于 QByteArray。还有别的办法吗？一个例子真的很有帮助。

Answer 1

你可以施放它:

QByteArray arr;
mavlink_attitude_t* m = reinterpret_cast<mavlink_attitude_t*>(arr.data());