auto8888
V2EX  ›  C++

单例类里不能用模板函数成员吗

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  •   auto8888 · Nov 18, 2020 · 2089 views
    This topic created in 2045 days ago, the information mentioned may be changed or developed.

    经典的单例类

    static CA* Instance(){static CA *instance =new CA() ; return instance;}

    模板函数成员

    template <typename T>

    void creatDB(const std::vector <T> &log);

    编译能过,单例的 Instance()也有值,运行到了 creatDB,this 就变成 0x0 了,然后就崩了。

    2 replies    2020-11-18 14:21:20 +08:00
    wutiantong
        1
    wutiantong  
       Nov 18, 2020
    能用,找别的原因吧
    newmlp
        2
    newmlp  
       Nov 18, 2020
    这和单不单例有啥关系,肯定是其他原因
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