Mastering C++ Programming

Using tasks with a thread support library

In the previous section, you learned how packaged_task can be used in an elegant way. I love lambda functions a lot. They look a lot like mathematics. But not everyone likes lambda functions as they degrade readability to some extent. Hence, it isn't mandatory to use lambda functions with a concurrent task if you don't prefer lambdas. In this section, you'll understand how to use a concurrent task with the thread support library, as shown in the following code:

#include <iostream>#include <future>#include <thread>#include <functional>using namespace std;int add ( int firstInput, int secondInput ) {  return firstInput + secondInput;}int main ( ) {  packaged_task<int (int, int)> addTask( add); future<int> ...