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#include <thread>

#include <atomic>

#include <iostream>

#include <list>

using namespace std;

atomic_ullong ullCount(0);

void threadfun1()

{

for(int i =0; i< 1000; i++)

{

printf("ullCount:%lld\r\n", ullCount);

}

void threadfun2()

{

for(int i =0; i< 1000; i++)

{

printf("ullCount:%lld\r\n", ullCount);

}

int main()

{

std::list<thread> lstThread;

for (int i=0; i< 100; i++)

{

lstThread.push_back(thread(threadfun1));

}

for (int i=0; i< 100; i++)

{

lstThread.push_back(thread(threadfun2));

}

for (auto& th: lstThread)

{

th.join();

}

int x = ullCount.load(memory_order_relaxed);

printf("finally ullCount:%ld\r\n", x);

}

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003_std_atomic_unsigned_long_long.cpp

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003_std_atomic_unsigned_long_long.cpp

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