Question

How to use lambda function in C++

Answer 1

#include <iostream>

auto sum = [](int x, int y) { return x + y; };

int main()
{
    std::cout << sum(6, 3);
}
 
 
 
 
/*
run:
 
9

*/

 

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Answer 2

#include <iostream>

int main()
{
    auto sum = [](int x, int y) { return x + y; };
    
    std::cout << sum(6, 3);
}
 
 
 
 
/*
run:
 
9

*/

 

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Answer 3

#include <iostream>

int main()
{
    auto isGreater = [](int x, int y) { return x > y; };
    
    std::cout << isGreater(6, 3);
}
 
 
 
 
/*
run:
 
1

*/

 

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Answer 4

#include <iostream>

int main()
{
    auto sum = [](auto x, auto y) { return x + y; };
    
    std::cout << sum(3.14, 0.000056);
}
 
 
 
 
/*
run:
 
3.14006

*/

 

70+ SQL courses for beginners and professionals