Re: [Boost-users] [lockfree] compile-time capacity vs. run-time capacity

2013/2/15 Akira Takahashi <faithandbrave@gmail.com>

Hi, I confused with boost::lockfree::queue behavior.

Fist, run-time capacity:

#include <iostream> #include <boost/lockfree/queue.hpp>

int main() { boost::lockfree::queue<int, boost::lockfree::fixed_sized<true>> que(3);

std::cout << std::boolalpha;

std::cout << que.push(1) << std::endl; // true std::cout << que.push(2) << std::endl; // true std::cout << que.push(3) << std::endl; // true std::cout << que.push(4) << std::endl; // false }

I think this behavior is correct.

But, compile-time capacity:

#include <iostream> #include <boost/lockfree/queue.hpp>

int main() { boost::lockfree::queue<int, boost::lockfree::capacity<3>> que;

std::cout << std::boolalpha;

std::cout << que.push(1) << std::endl; // true std::cout << que.push(2) << std::endl; // true std::cout << que.push(3) << std::endl; // false : why? std::cout << que.push(4) << std::endl; // false }

Is this bug or specification?

Thanks, Akira

Added ticket. https://svn.boost.org/trac/boost/ticket/8135