在 C++ 中通过构造函数初始化

Question

I have question about constructor, why following code works correctly:

#include <iostream>
using namespace std;
class mycl
{
private:
    int a;
    //struct
    //{
        char b,c;
    //} ms;

public:
    mycl (int _a,char _b,char _c):a (_a), b (_b), c (_c){}

};

int main() {
    // your code goes here
    mycl slc (15, 'a', 'f');
    return 0;
}

https://ideone.com/wBgM1b

but there is a compilation error in this one

https://ideone.com/Yqxvzk

is it possible to initialize members of complex types this way?

ps thank for translate and for answer. sorry about wrong language

Answer 1

You want:

mycl(int _a, char _b, char _c) : a(_a), ms{_b, _c} {}
//                                      ^^^^^^^^^^