Difference between revisions of "cpp/container/queue/size"
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Revision as of 12:54, 4 May 2012
| size_type size() const; |
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Returns the number of elements in the container adaptor. Equivalent to: return c.size().
Contents |
Parameters
(none)
Return value
The number of elements in the container adaptor.
Complexity
Constant.
Example
Run this code
#include <cassert> #include <queue> int main() { std::queue<int> queue; assert(queue.size() == 0); const int count = 8; for (int i = 0; i != count; ++i) queue.push(i); assert(queue.size() == count); }
See also
| checks whether the container adaptor is empty (public member function) | |
| (C++17)(C++20) |
returns the size of a container or array (function template) |
