如何遍历std :: map< string，int>和std :: vector< int>使用单for循环?
问题描述：
如何使用单个for循环遍历std::map<string,int>和std::vector<int>?
How to iterate through a std::map<string,int> and std::vector<int> using single for loop ?
我已经看到了这个问题，但无法解决我的问题.
I have seen this questions but could not solve my problem.
我正在尝试这样
map<string,int> data;
data["Shravan"] = 1;
data["Mama"] = 2;
data["Sa1"] = 3;
data["Jhandu"] = 4;
vector<int> values = {1,2,3,4};
for(const auto& it1: data,it2 : values) {
// Do something
}
编辑:我无法一一列举.因为我在同一函数中使用std::map的键和std::vector的值.将在for循环内调用.
Edit : I can not go through one by one. Because i am using the key of std::map and value of std::vector in the same function. Which will be called inside for loop.
两个相同大小的容器.
Both the container of same size.
答
如果您知道两者的长度相同，请使用类似以下内容的
If you know there's both the same length, use something like:
auto vit = begin(value);
auto mit = begin(data);
for (; vit != end(value); ++mit, ++vit) {
// Use mit and vit
}