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Template Parameters

Table 7.1. Template parameter requirements

parameter	Requirements
T	The type of the elements stored in the circular_buffer. The T has to be Assignable and CopyConstructible. Moreover T has to be DefaultConstructible if supplied as a default parameter when invoking some of the circular_buffer's methods, e.g. `insert(iterator pos, const value_type& item = value_type())`. And EqualityComparable and/or LessThanComparable if the circular_buffer will be compared with another container.
Alloc	The allocator type used for all internal memory management. The Alloc has to meet the allocator requirements imposed by STL.

parameter

Requirements

The type of the elements stored in the circular_buffer. The T has to be Assignable and CopyConstructible. Moreover T has to be DefaultConstructible if supplied as a default parameter when invoking some of the circular_buffer's methods, e.g. insert(iterator pos, const value_type& item = value_type()). And EqualityComparable and/or LessThanComparable if the circular_buffer will be compared with another container.

Alloc

The allocator type used for all internal memory management. The Alloc has to meet the allocator requirements imposed by STL.