mobile typing isn't scored — practice only

class LockGuard {

C++ · general · type the snippet below to practice

wpm0

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about this snippet

This is the raii snippet in C++ — 12 lines of real C++ code that exercises common patterns you'll see in production. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.

view source (12 lines)

#include <mutex>

class LockGuard {
public:
    explicit LockGuard(std::mutex& m) : mtx(m) { mtx.lock(); }
    ~LockGuard() { mtx.unlock(); }
    LockGuard(const LockGuard&) = delete;
    LockGuard& operator=(const LockGuard&) = delete;
private:
    std::mutex& mtx;
};

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