C++ 20 (2a) New Features - Latches and Barriers

The video tutorial explains the use of synchronization mechanisms like latches and barriers in multithreading. It starts with an example using a latch, where two threads increment a counter and wait for each other to finish before proceeding. The tutorial then transitions to barriers, highlighting their reusability and flexibility compared to latches. The concept of a flex barrier, which allows runtime modification of the counter, is also introduced.

What is the significance of the initial value of the barrier?

Explain how the barrier differs from the latch in terms of reusability.