C++ Lambda Expressions

Write inline anonymous callable functions with capture clauses.

Lambdas define anonymous function objects inline. The capture clause ([&] by reference, [=] by value) specifies which variables from the enclosing scope are accessible inside.

Key Takeaways: C++ Lambda Expressions

Mastering C++ Lambda Expressions helps you write clean and reliable C++ code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

C++ Lambda Expressions Code Example

C++
#include <iostream>
#include <vector>
#include <algorithm>

int main() {
    std::vector<int> nums = {4, 1, 8, 3};
    std::sort(nums.begin(), nums.end(), [](int a, int b) {
        return a < b;
    });

    for (int n : nums) std::cout << n << " ";
    return 0;
}
Output
1 3 4 8
Run this example on your own computer. The "Get Started" lesson shows how to set it up.
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