如何初始化 C++ 中用户定义结构的最小值？

Question

This is my user defined struct

struct Data
    {
        int value;
        int age;
    };

I am defining a function to get the maximum value in an unordered_map.

unordered_map<int,Data>::iterator maxValue(unordered_map<int, Data> map) {
    pair<int, Data> entryWithMaxValue = make_pair(INT_MIN, ??);
}

What should I write in place of the question mark so as to define a minimum value for type Data?

Answer 1

You can use this in place of your ?? :

Data{INT_MIN, INT_MIN}

You could also use Data{} to get zero for value and age if you prefer. In truth it doesn't matter, because the maximum value of an empty container is not well defined.