CPP

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/

c++ lambda

[ captureClause ] ( parameters ) -> returnType
{
    statements;
}

cpp lambda function

#include <iostream>
using namespace std;

bool isGreater = [](int a, int b){ return a > b; }

int main() {
	cout << isGreater(5, 2) << endl; // Output: 1
	return 0;
}

lambda function in c++

//lambda function for sorting vector ascending
sort(vec.begin(),vec.end(),[](int &a, int &b){
	return a<b;
});
//lambda function for sorting vector of vector ascending based on first value
sort(vec.begin(),vec.end(),[](vector<int> &a, vector<int> &b){
	return a[0]<b[0];
});

c++ lambda as variable

int main() {
  auto myfunc = [](int a, int b) -> int {
    return a + b;
  }
  cout << myfunc(12, 2);
}