what is the lambda function is c++ code example

Example 1: lambda c++

#include <iostream>
#include <string>
 
// returns a lambda
auto makeWalrus(const std::string& name)
{
  // Capture name by reference and return the lambda.
  return [&]() {
    std::cout << "I am a walrus, my name is " << name << '\n'; // Undefined behavior
  };
}
 
int main()
{
  // Create a new walrus whose name is Roofus.
  // sayName is the lambda returned by makeWalrus.
  auto sayName{ makeWalrus("Roofus") };
 
  // Call the lambda function that makeWalrus returned.
  sayName();
 
  return 0;
}

Example 2: lambda c++

- Good website to learn lambda in c++:
https://docs.microsoft.com/en-us/cpp/cpp/lambda-expressions-in-cpp
https://en.cppreference.com/w/cpp/language/lambda
https://www.geeksforgeeks.org/lambda-expression-in-c/
https://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11
https://linuxhint.com/lambda-expressions-in-c/