C++std::atomic

std::atomic是&＃xff23;&＃43;&＃43;的原子操作&＃xff0c;属于并发中的线程安全类型&＃xff0c;可以理解成数据自带mutex锁&＃xff0c;不同线程访问同一个数据时不出错&＃xff0c;各线程不冲突。

#include
#include
#include
std::atomic_int g_iCount &＃61; 100;void threadfunc1()
{while (g_iCount > 0){printf("threadfunc1 g_iCount:%d\r\n", --g_iCount);}
}void threadfunc2()
{while (g_iCount > 0){printf("threadfunc2 g_iCount:%d\r\n", --g_iCount);}
}int main(int argc, char** argv)
{thread t1(threadfunc1);thread t2(threadfunc1);thread t3(threadfunc2);thread t4(threadfunc2);t1.join();t2.join();t3.join();t4.join();return 0;
}

参考博客&＃xff1a;

1>　https://blog.csdn.net/delongwang520/article/details/79604329

2>　https://blog.csdn.net/Poo_Chai/article/details/93652619

3>    https://blog.csdn.net/yockie/article/details/8838686?utm_medium&＃61;distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source&＃61;distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param