std::forward_list::resize
From cppreference.com
< cpp | container | forward list
void resize( size_type count );
|
(1) | |
void resize( size_type count, const value_type& value );
|
(2) | |
Resizes the container to contain count
elements.
If the current size is greater than count
, the container is reduced to its first count
elements.
If the current size is less than count
,
1) additional default-inserted elements are appended
2) additional copies of
value
are appended
Contents |
[edit] Parameters
count | - | new size of the container |
value | - | the value to initialize the new elements with |
Type requirements | ||
-
T must meet the requirements of DefaultInsertable in order to use overload (1).
|
||
-
T must meet the requirements of CopyInsertable in order to use overload (2).
|
[edit] Return value
(none)
[edit] Complexity
Linear in the difference between the current size and count
.
[edit] Example
Run this code
#include <iostream> #include <forward_list> int main() { std::forward_list<int> c = {1, 2, 3}; std::cout << "The forward_list holds: "; for(auto& el: c) std::cout << el << ' '; std::cout << '\n'; c.resize(5); std::cout << "After resize up 5: "; for(auto& el: c) std::cout << el << ' '; std::cout << '\n'; c.resize(2); std::cout << "After resize down to 2: "; for(auto& el: c) std::cout << el << ' '; std::cout << '\n'; }
Output:
The forward_list holds: 1 2 3 After resize up 5: 1 2 3 0 0 After resize down to 2: 1 2
[edit] See also
inserts elements after an element (public member function) |
|
erases an element after an element (public member function) |