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by Kranar
1543 days ago
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Your comment reinforces nyanpasu64 point that the average C++ developer doesn't understand multithreading. Your comment is wrong in that it is never correct in a standard conforming C++ program to read and write to the same object from different threads without the use of a memory barrier, even if the CPU + RAM supports it. The C++ compiler itself will not support such an access pattern and the compiler may reorder instructions that are not protected by a barrier in such a way that results in undefined memory access. https://en.cppreference.com/w/cpp/language/memory_model |
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