A copy of a concurrent bounded queue doesn't preserve the capacity of the original queue object.

[SergueiEK]

Summary

A copy of a concurrent bounded queue doesn't preserve the capacity of the original queue.

Version

2021.10.0

Environment

AlmaLinux 9
gcc 13.1.0

Observed Behavior

If I set the capacity of an instance of concurrent bounded queue to a specific value and then create a copy of this queue, the capacity of the new object is set to the default value (0x3fffffffffffffff)

Expected Behavior

I would expect the copied queue to retain the same capacity as the original.

Steps To Reproduce

The following code can be used to reproduce the issue:

#include <iostream>
#include <tbb/concurrent_queue.h>
int main(int ac, char**av) {
    tbb::concurrent_bounded_queue<int> q;
    q.set_capacity(100);
    std::cout << "q capacity = " << q.capacity() << std::endl;
    tbb::concurrent_bounded_queue<int> q2(q);
    std::cout << "q capacity = " << q.capacity() << " q2 capasity = " << q2.capacity() << std::endl;
}

It produces the following output:

q capacity = 100
q capacity = 100 q2 capasity = 4611686018427387903