How do C++20 iterators compare to ranges in terms of performance?

How do C++20 iterators compare to ranges in terms of performance?

C++20 introduced ranges, which can simplify code and improve readability. However, performance can vary based on usage.

Can you explain how ranges might be more efficient in certain scenarios?

Ranges can optimize performance by eliminating unnecessary copies and providing lazy evaluation, which can be beneficial in large datasets.

Are there any benchmarks available comparing the two?

Yes, several benchmarks show that while iterators can be faster in tight loops, ranges often provide better performance in more complex operations.

What are some common pitfalls when using ranges?

Common pitfalls include misunderstanding the lazy evaluation model and not considering the overhead of range adaptors.