std::list::list
From cppreference.com
explicit list( const Allocator& alloc = Allocator() );
|
(1) | |
explicit list( size_type count,
const T& value = T(), |
(2) | (until C++11) (since C++11) |
explicit list( size_type count );
|
(3) | (since C++11) |
template< class InputIt >
list( InputIt first, InputIt last, |
(4) | |
list( const list& other );
|
(5) | |
list( const list& other, const Allocator& alloc );
|
(5) | (since C++11) |
list( list&& other )
|
(6) | (since C++11) |
list( list&& other, const Allocator& alloc );
|
(6) | (since C++11) |
list( std::initializer_list<T> init,
const Allocator& alloc = Allocator() ); |
(7) | (since C++11) |
Constructs new container from a variety of data sources and optionally using user supplied allocator alloc
.
1) Default constructor. Constructs empty container.
2) Constructs the container with
count
copies of elements with value value
.
3) Constructs the container with
count
value-initialized (default constructed, for classes) instances of T
. No copies are made.
4) Constructs the container with the contents of the range
[first, last)
.
5) Copy constructor. Constructs the container with the copy of the contents of
other
. If alloc
is not provided, allocator is obtained by calling std::allocator_traits<allocator_type>::select_on_copy_construction(other).
6) Move constructor. Constructs the container with the contents of
other
using move semantics. If alloc
is not provided, allocator is obtained by move-construction from the allocator belonging to other
.
7) Constructs the container with the contents of the initializer list
init
.
Contents |
[edit] Parameters
alloc | - | allocator to use for all memory allocations of this container |
count | - | the size of the container |
value | - | the value to initialize elements of the container with |
first, last | - | the range to copy the elements from |
other | - | another container to be used as source to initialize the elements of the container with |
init | - | initializer list to initialize the elements of the container with |
Type requirements | ||
-
Allocator must meet the requirements of Allocator .
|
||
-
InputIt must meet the requirements of InputIterator .
|
[edit] Complexity
1) Constant
2-3) Linear in
count
4) Linear in distance between
first
and last
5) Linear in size of
other
6) Constant. If
alloc
is given and alloc != other.get_allocator(), then linear.
7) Linear in size of
init
[edit] Example
#include <list> #include <string> int main() { // c++11 initializer list syntax: std::list<std::string> words1 {"the", "frogurt", "is", "also", "cursed"}; // words2 == words1 std::list<std::string> words2(words1.begin(), words1.end()); // words3 == words1 std::list<std::string> words3(words1); // words4 is {"Mo", "Mo", "Mo", "Mo", "Mo"} std::list<std::string> words4(5, "Mo"); }
[edit] See also
assigns values to the container (public member function) |
|
assigns values to the container (public member function) |