Fun with atomics

test.cpp

#include <atomic>

constexpr uint32_t offset = 10000;

// Called from several thread
void calculate(std::atomic<uint32_t>& number)
{
	number *= 2;

	// ...... long code

	number = number + offset;
}

int main()
{
	std::atomic<uint32_t> num = 1;

	// Call this function from several thread
	calculate(num);
}