C++ Performance Quiz

How well do you know what the compiler does? Pick a question and find out.

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• Free Function Pointer vs. Member Function

  2 snippets

• std::list Traversal: Forward vs Two-Ended

  2 snippets

• Key Lookup: std::map vs std::unordered_map

  2 snippets

• 2D Array Traversal: Row-Major vs Column-Major

  2 snippets

• Returning std::optional<Result>: Wrapper Local vs Value Local

  2 snippets

• Copy vs Move Semantics: std::string Performance

  2 snippets

• UTF-8 Code Point Counting: Nibble Table vs Range Checks

  2 snippets