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# std::vector::resize

From cppreference.com
< cpp‎ | container‎ | vector

[edit template]

void resize( size_type count, T value = T() ); |  | (until C++11)
void resize( size_type count ); | (1) | (since C++11)
void resize( size_type count, const value_type& value); | (2) | (since C++11)

Resizes the container to contain `count` elements.

If the current size is greater than `count`, the container is reduced to its first `count` elements as if by repeatedly calling `pop_back()`

If the current size is less than `count`, additional elements are appended and initialized with copies of `value`. | (until C++11)
If the current size is less than `count`, 1) additional value-initialized elements are appended 2) additional copies of `value` are appended | (since C++11)

### [edit] Parameters

count | - | new size of the container
value | - | the value to initialize the new elements with
Type requirements
- `1) T` must meet the requirements of `DefaultConstructible` and `MoveInsertable`.
- `2) T` must meet the requirements of `CopyInsertable` and `MoveInsertable`.

### [edit] Return value

(none)

### [edit] Complexity

Linear in the size of the container

### [edit] See also

size | returns the number of elements (public member function) [edit]

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