如何在C ++ 11中初始化对象向量

Question

Given the following class:

class MyRecord {
public:
    int a;
    int b;
    MyRecord() : MyRecord(8, 9) {};
    MyRecord(int a, int b) : a(a), b(b) {};
};

What's the easiest way to initialize my vector: std::vector<MyRecord> myVector with some data?

Answer 1

Demonstrated via example:

MyRecord exampleRecord(3,4);
std::vector<MyRecord> myVector = {{1,2}, {}, exampleRecord};

For verification, the following code

for (MyRecord &record : myVector) {
    std::cout << "a:" << record.a << " b:" << record.b << std::endl;
}

will output:

a:1 b:2
a:8 b:9
a:3 b:4