By default that underlying type is deque , but a different type may be selected explicitly. Definition Defined in the standard header stack , and in the nonstandard backward-compatibility header stack.h . The type of object stored in the stack. The type of the underlying container used to implement the stack. T is a model of Assignable .
Sequence is a model of Back Insertion Sequence .
Public base classes None. The default constructor. Creates an empty stack . Assignable The copy constructor. Assignable The assignment operator.