Category: std::list
C++ std::list Tutorial, Example and Usage Details
In this article we will discuss std::list usage details. What is std::list ? std::list is sequential STL container that is internally implemented as doubly linked list. i.e. every element in the list is stored at a seperate memory location i.e. called node and it also contains a pointer to the previous and next node. Advertisements …
Different ways to Initialize a list in C++
In this article we will discuss the different ways to initialize a std::list in C++. std::list provides various overloaded constructors for creation and initialization of list. Let’s see different ways to create & initialize a std::list in C++ i.e. Advertisements Creating an Empty List in C++ std::list has a default constructor that will create an empty …
Difference between Vector and List in C++
In this article we will discuss the differences between std::vector and std::list in C++. Both vector and list are sequential containers of C++ Standard Template Library. But there are many differences between them because of their internal implementation i.e. Advertisements List stores elements at non contiguous memory location i.e. it internally uses a doubly linked …
How to remove elements from a List based on value or External Criterion
In this article we will discuss how to remove an element from a List by matching a value or by matching some criterion. std::list provides two member functions for removing elements based on value i.e. std::list::remove and std::list::remove_if. Advertisements Using std::list::remove to remove element by value void remove (const value_type& val); It removes all the elements …
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How to remove elements from a List while Iterating
In this article we will see how to delete an element from a list while iterating through it. Removing Elements From a List while Iterating through it std::list provides a member function erase() that accepts an iterator and deletes the element pointed by that Iterator. But it makes that iterator invalid i.e. we cannot use …
How to erase elements from a list in c++ using iterators
In this article we will see how to erase elements from a std::list using iterators. std::list provides 2 member function to delete elements using iterators i.e. Advertisements iterator erase (const_iterator position); It deletes the element representing by passed iterator “position” and returns the iterator of element next to last deleted element. iterator erase (const_iterator first, const_iterator last); …
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C++ : How to get element by index in List
In this article we will discuss how to get element by index in std::list. std::list doesn’t have operator [] std::list does not have random access operator [] because std::list internally store elements in doubly linked list. So, to access an element at nth location we need to iterate one by one from beginning to nth element. …
C++ : How to Sort a List of objects with custom Comparator or lambda function
In this example we will discuss different ways to sort a std::list of user defined data types with custom comparators or lambda functions. Suppose we have a type Player that contains Id and name. Advertisements struct Player { int id; std::string name; Player(int playerId, std::string playerName) : id(playerId), name(playerName) { } bool operator <(const Player …
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C++ : Different Ways to iterate over a List of objects
In this article we will discuss different ways to iterate through std::list of objects. Suppose we have a struct Player that contains id and name i.e. Advertisements struct Player { int id; std::string name; Player(int playerId, std::string playerName) : id(playerId), name(playerName) { } }; Lets create a list Player objects i.e. std::list<Player> listofPlayers = { …
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C++ List – Find | Contains : How to search an element in std::list ?
In this article we will discuss different ways to find or search a given element in the list. std::list does not provide ant find() or contains() method. So, if we want to search for an element in list or check if an element exists in std::list, then we not to write some code for it i.e. …
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