empty
Syntax:
#include <deque> bool empty() const;
The empty() function returns true if the deque has no elements, false otherwise.
For example, the following code uses empty() as the stopping condition on a while loop to clear a deque and display its contents in reverse order:
deque<int> dq; for( int i = 0; i < 5; i++ ) { dq.push_back(i); } while( !dq.empty() ) { cout << dq.back() << endl; dq.pop_back(); }
Related Topics: size