23 Containers library [containers]

23.3 Sequence containers [sequences]

23.3.3 Class template deque [deque]

23.3.3.3 deque capacity [deque.capacity]

void resize(size_type sz);

1

Effects: If sz <= size(), equivalent to calling pop_back() size() - sz times. If size() < sz, appends sz - size() default-inserted elements to the sequence.

2

Requires: T shall be MoveInsertable and DefaultInsertable into *this.

void resize(size_type sz, const T& c);

3

Effects: If sz <= size(), equivalent to calling pop_back() size() - sz times. If size() < sz, appends sz - size() copies of c to the sequence.

4

Requires: T shall be CopyInsertable into *this.

void shrink_to_fit();

5

Requires: T shall be MoveInsertable into *this.

6

Complexity: Linear in the size of the sequence.

7

Remarks: shrink_to_fit is a non-binding request to reduce memory use but does not change the size of the sequence. [ Note: The request is non-binding to allow latitude for implementation-specific optimizations.  — end note ]