c++单例结构队列

Question

singleton变量中有一个队列。

但是，当从另一个类推送时，推送值不匹配，错误继续。

请。

单例标头

typedef struct _Hybrid_Message_st
{
   int hy_state;
    std::string hy_msg;
} Hybrid_Message_st;

class Hybrid_Singleton
{
  private:
    static Hybrid_Singleton *instance;
    Hybrid_Singleton(void){}
  public:
    ~Hybrid_Singleton(void){}
    static Hybrid_Singleton* getInstance();
    std::queue<Hybrid_Message_st> hy_queue;
    int count;
 };

单例源代码

  Hybrid_Singleton* Hybrid_Singleton::getInstance()
  {
    if(instance == NULL)
    {
        instance = new Hybrid_Singleton;
    }

    return instance;
 }

 Hybrid_Singleton *Hybrid_Singleton::instance = NULL;

有问题吗？

 Hybrid_Message_st ss;
 ss.hy_state = 0;
 ss.hy_msg = "Hellow";
 Hybrid_Singleton::getInstance()->hy_queue.push(ss);

错误

 error: no matching function for call to ‘std::queue<_Hybrid_Message_st>::push(broadcast_server::Hybrid_Message_st&)’

Answer 1

看起来ss类型是一个broadcast_server::Hybrid_Message_st，而Singleton使用的是Hybrid_Message_st。请注意这两种类型在命名空间上的区别。

有可能你在代码中的某个地方使用了using broadcast_server。