How do C++11 and C++14 compare in terms of performance?

How do C++11 and C++14 compare in terms of performance?

C++14 introduced several improvements over C++11, including better performance optimizations. For instance, C++14 allows for more efficient use of lambda expressions and introduces relaxed constexpr restrictions, which can lead to faster compile times and runtime performance.

Can you give examples of specific performance improvements in C++14?

Sure! One notable improvement is the addition of generic lambdas, which can lead to more efficient code. Additionally, C++14's relaxed constexpr allows for more complex computations at compile time, reducing runtime overhead.

Are there any benchmarks comparing the two versions?

Yes, various benchmarks show that C++14 can outperform C++11 in specific scenarios, especially in template-heavy code and when using features like std::make_unique.

Is it worth upgrading from C++11 to C++14 for performance reasons?

If your project heavily relies on templates or lambda expressions, upgrading to C++14 could yield noticeable performance benefits. However, the decision should also consider other factors like code maintainability and compatibility.