What are lock_guard and unique_lock in C++?

Can you explain the difference between lock_guard and unique_lock in C++?

Sure! Both lock_guard and unique_lock are used for managing mutexes in C++, but they have different functionalities.

What are the main advantages of using unique_lock over lock_guard?

The main advantage of unique_lock is its flexibility; it can be locked and unlocked multiple times, while lock_guard cannot.

Can you give me a code example of both?

Absolutely! Here's a simple example:

#include <iostream>
#include <mutex>

std::mutex mtx;

void example() {
    lock_guard<std::mutex> guard(mtx); // Automatically locks the mutex
    // Critical section
}

void exampleUnique() {
    unique_lock<std::mutex> ulock(mtx);
    // Critical section
    ulock.unlock(); // Manually unlocks the mutex
}