Defining functions on the run using lambda expressions
With lambda expressions, we can encapsulate code in order to call it later, and that also might be somewhere else because we can copy them around. We can also just encapsulate code to call it multiple times with slightly different parameters without having to implement a whole new function class for that task.
The syntax of lambda expressions was really new in C++11, and it has slightly evolved with the next two standard versions until C++17. In this section, we will see what lambda expressions can look like and what they mean.
How to do it...
We are going to write a little program in which we play with lambda expressions in order to get a feeling for them:
- Lambda expressions do not need any library support, but we are going to write messages to the terminal and use strings, so we need the headers for this:
#include <iostream>
#include <string>- Everything happens in the main function this time. We define two function...
