将结构化数据保存到C++中的地图中

Question

如何添加数据以映射包含int键和值的结构，而无需首先使用struct类型创建和定义实际对象？基本上我有：

struct myStruct { string name2; int aCnt; std::list<string> theItems; };

// Now I define a map
std::map<string, myStruct> myMap;

// Now I want to add items to myMap.  
mymap["ONE"] = {"TEN", 3, {"p1","p2","p3"}};  // But this doesn't seem to work

// I know I could do something like
myStruct myst;
myst.name2 = "TEN";
myst.aCnt = 3;
...blah blah

mymap["ONE"] = myst;

// But I don't want to have to write all of those lines especially because
// this is being done as an initialization of the map.

谢谢!

Answer 1

如果您使用的是C++11，则此代码已经在运行：

#include <iostream>
#include <map>
#include <string>
#include <list>
using namespace std;


struct myStruct { string name2; int aCnt; std::list<string> theItems; };
int main()
{

        // Now I define a map
        std::map<string, myStruct> myMap;

        // Now I want to add items to myMap.
        myMap["ONE"] = {"TEN", 3, {"p1","p2","p3"}};  // But this doesn't seem to work





        return 0;
}

并汇编：

burgos@germany:~/test$ g++ struct.cpp -o struct -std=c++11
burgos@germany:~/test$

如果没有，那么您就倒霉了，但是所有的主要编译器都应该支持c++11初始化--确保您得到了最新版本。