Modern C++ Programming Cookbook

How to do it...

To return multiple values from a function using a compiler that supports C++17 you should do the following:

1. Use an std::tuple for the return type.

        std::tuple<int, std::string, double> find()         {           return std::make_tuple(1, "marius", 1234.5);         }

2. Use structured bindings to unpack the values of the tuple into named objects.

        auto [id, name, score] = find();

3. Use decomposition declaration to bind the returned values to variables inside an if statement or switch statement.

        if (auto [id, name, score] = find(); score > 1000)         {           std::cout << name << std::endl;         }