c++ atomic

最新推荐文章于 2025-07-12 10:15:28 发布

原创最新推荐文章于 2025-07-12 10:15:28 发布 · 212 阅读

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#atomic

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#include <iostream>
#include <thread>
#include <atomic>

std::atomic<int> sum {0};
void func(int arg) {
    for (int i = 1; i<=5; i++) {
        
        sum.fetch_add(i);
    }
    std::cout<<arg<<","<<sum.load()<<std::endl;
}
int main(){
    std::thread ts[2];
    
    ts[0] = std::thread(func, 0);
    ts[1] = std::thread([&](int arg){
        for (int i = 1; i<=5;i++) {
            sum += i;
        }
        std::cout<<arg<<","<<sum.load()<<std::endl;
    }, 1);
    ts[0].join();
    ts[1].join();
    std::cout<<"sum:"<<sum.load()<<std::endl;
}