#include #include #include using namespace std; int main() { //lambda function to print vector vector v = {1,2,3,4,5,6,7,8,9}; cout <<"lambda function to print vector: " << endl; for_each(v.begin(),v.end(), [](int v) { cout << v << " "; } ); cout << endl << endl; //lambda function to add values int x = 1; int y = 9; //here x and y are passed as value into capture list....we could have passed individually also like [x,y] auto f1 = [=](){return x+y;}; //here x and y are passed as ref into capture list....we could have passed individually also like [&x,&y] auto f2 = [&](){return x+y;}; //here all are passed as ref into capture list and y as value auto f3 = [&,y](){return x+y;}; cout << "x+y as (x as value, y as value) before modification: " << f1() << endl; cout << "x+y as (x as ref, y as ref) before modification: " << f2() << endl; cout << "x+y as (x as ref, y as value) before modification: " << f3() << endl; cout << endl << endl; x = 10; y = 90; cout << "x+y as (x as value, y as value) after modification: " << f1() << endl; cout << "x+y as (x as ref, y as ref) after modification: " << f2() << endl; cout << "x+y as (x as ref, y as value) after modification: " << f3() << endl; cout << endl << endl; //we can initialize in lambda capture also going forward C++ 14 auto g1 = [x=11,y=12](){return (x+y);}; cout << "Initialized in lambda capture : " << g1() << endl; return 0; }

LambdaFunc