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boost 循环缓冲区
boost 循环缓冲区
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- #include <boost/circular_buffer.hpp>
- int _tmain(int argc, _TCHAR* argv[])
- {
- boost::circular_buffer<int> cb(3);
- // Insert some elements into the buffer.
- cb.push_back(1);
- cb.push_back(2);
- cb.push_back(3);
- int a = cb[0]; // a == 1
- int b = cb[1]; // b == 2
- int c = cb[2]; // c == 3
- // The buffer is full now, pushing subsequent
- // elements will overwrite the front-most elements.
- cb.push_back(4); // Overwrite 1 with 4.
- cb.push_back(5); // Overwrite 2 with 5.
- // The buffer now contains 3, 4 and 5.
- a = cb[0]; // a == 3
- b = cb[1]; // b == 4
- c = cb[2]; // c == 5
- // Elements can be popped from either the front or the back.
- cb.pop_back(); // 5 is removed.
- cb.pop_front(); // 3 is removed.
- int d = cb[0]; // d == 4
- return 0;
- }
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