const数组类成员初始化

Question

可能重复:
在C++中的类初始值设定项中初始化const数组

这是一个新手问题.如何初始化常量整数数组类成员？我认为在相同的情况下经典数组不是最佳选择,我应该使用什么而不是它？

class GameInstance{
    enum Signs{
        NUM_SIGNS = 3;
    };
    const int gameRulesTable[NUM_SIGNS][NUM_SIGNS]; //  how to init it?
public:
    explicit GameInstance():gameRulesTable(){};
};

Answer 1

在C++ 11中,您可以在初始化列表中初始化const数组成员

class Widget {
public:
  Widget(): data {1, 2, 3, 4, 5} {}
private:
  const int data[5];
};

要么

class Widget {
    public:
      Widget(): data ({1, 2, 3, 4, 5}) {}
    private:
      const int data[5];
    };

有用的链接:http://www.informit.com/articles/article.aspx？p = 1852519

http://allanmcrae.com/2012/06/c11-part-5-initialization/

Answer 2

让它静止？

class GameInstance{
    enum Signs{
        NUM_SIGNS = 3};
    static const int gameRulesTable[2][2];
public:
    explicit GameInstance(){};
};

...in your cpp file you would add:
const int GameInstance::gameRulesTable[2][2] = {{1,2},{3,4}};