如何分配原子类型的向量?
How to assign a vector of atomic types?
如何分配具有原子类型的向量成员?
#include <iostream>
#include <thread>
#include <vector>
using namespace std;
int main()
{
vector<atomic<bool>> myvector;
int N=8;
myvector.assign(N,false);
cout<<"done!"<<endl;
}
https://wandbox.org/permlink/lchfOvqyL3YKNivk
prog.cc: In function 'int main()':
prog.cc:11:28: error: no matching function for call to 'std::vector<std::atomic<bool> >::assign(int&, bool)'
11 | myvector.assign(N,false);
| ^
std::atomic
既不可复制也不可移动构造,因此您可以改为:
std::vector<std::atomic<bool>> myvector(8);
for (auto& b : myvector) { std::atomic_init(&b, false); }
如何分配具有原子类型的向量成员?
#include <iostream>
#include <thread>
#include <vector>
using namespace std;
int main()
{
vector<atomic<bool>> myvector;
int N=8;
myvector.assign(N,false);
cout<<"done!"<<endl;
}
https://wandbox.org/permlink/lchfOvqyL3YKNivk
prog.cc: In function 'int main()':
prog.cc:11:28: error: no matching function for call to 'std::vector<std::atomic<bool> >::assign(int&, bool)'
11 | myvector.assign(N,false);
| ^
std::atomic
既不可复制也不可移动构造,因此您可以改为:
std::vector<std::atomic<bool>> myvector(8);
for (auto& b : myvector) { std::atomic_init(&b, false); }