//

// Created by zing on 6/29/2020.

//

/* lambda_capturing_by_value.cpp */

#include <vector>

#include <algorithm>

#include <iostream>

using namespace std;

auto main() -> int {

cout << "[lambda_capturing_by_value.cpp]" << endl;

// Initializing a vector containing integer element

vector<int> vect;

//Attempt to preallocate enough memory for specified number of elements.

vect.reserve(10);

for (int i = 0; i < 10; ++i)

vect.push_back(i);

// Displaying the elements of vect

cout << "Original Data:" << endl;

for_each(

begin(vect),

end(vect),

[](int n) {

cout << n << " ";

});

cout << endl;

// Initializing two variables

int a = 2;

int b = 8;

// Capturing value explicitly from the two variables

cout << "Printing elements between " << a;

cout << " and " << b << " explicitly [a,b]:" << endl;

for_each(

begin(vect),

end(vect),

[a, b](int n) {

if (n >= a && n <= b)

cout << n << " ";

});

cout << endl;

// Modifying variable a and b

a = 3;

b = 7;

// Capturing value implicitly from the two variables

cout << "printing elements between " << a;

cout << " and " << b << " implicitly[=]:" << endl;

for_each(

begin(vect),

end(vect),

[=](int n) {

if (n >= a && n <= b)

cout << n << " ";

});

cout << endl;

return 0;

}