3 Example Programs to Understand C++ STL Stack Implementation
In programming language, stack is a data structure that has few interesting properties. Its elements are added as you get them, and you empty the stack from last element that you have added into it. Stack is also known as LIFO, which stands for “Last In First Out”.
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This article provides an introductory look at the C++ Standard Template Library (STL). STL contains five kinds of components: containers, iterators, algorithms, function objects and allocators...
As the name suggests STL is the part of the C++ standard library which provides a rich set of template classes and template functions to make application development faster. It is a software library, a very important part of the standard library and influenced other parts of the standard library. STL library implementation has used the power of generic programming and projected the huge potential of generic programming to the programmers.
STL includes a set of template classes that overload the function call operator (operator ()). Instances of those classes are called functors or function objects. Many algorithm functions in STL take those functors as input and apply them on the elements they operate. STL has two kinds of function objects: Unary Functor: Functor that can be called with one arguments
All container classes are part of std name space. Most of the member functions of container classes are common and have common functionality. The decision of which container to use for specif need does not generally depend on the functionality of a container but the efficiency of some of it’s members. This is specifically true for sequence containers which provide different tradeoffs in complexities to insert/delete/access it’s elements. Learning STL will be effective only when you write programs using them. So I will not go behind every member of each container but give a brief overview of major container classes with simple examples. Complete details of each class you should consult the STL reference documents.
Containers classes are those that provide the means to hold elements and facilitates and have some sort of management and manipulation over it. When we talk about containers, the first thing that comes to mind is of Standard Template Library (STL). STL supplies quite a few sophisticated container implementations. Started as a separate library, STL heavily influenced the derivatives of container classes of the C++ standardized library in its present from. Though the standard library is a collection of many other functionalities apart from providing container classes, here we'll focus on container classes only.
How to use a template to create a custom collection class and using the C++ std::vector STL library as well as the operator. I will expect you to understand how pointers, classes, templates and the operator works
Microsoft includes the entire source for the collection wrappers in collection.h yet they provide the WRL wrappers in the conditional compilation only to support C++/CX. If you want to wrap the existing STL vectors in objects implementing WRL interfaces or wrap WRL vectors in STL vectors, then you need to roll your own library or port Microsoft's like I have done. This can be done by translating all the C++/CX code to C++.
Whether you’ve been using C++ for a while, or a newbie to programming, you still have to understand the basic details about C++11. C++ programming language is based on C programming, which has been connected to UNIX from it’s beginning. Creator of C is Dennis Richie. C++ has added many object oriented features on top of C including: classes, objects, templates, namespaces, few advanced data types, exceptions, references, STL, etc.
Iterator is a concept of objects which can be used to traverse through the elements of a collection of objects like STL containers. An iterator object can point to an element within a range of elements and provides a mean to move the pointer through other elements within that range using operators. An iterator must support at leas increment operator (++) and dereference operator (*). There is no single type of iterators. Pointer is the most simple and obvious form of iterators which can point to any element of an array and can iterate through the array of elements using increment (++) and decrement (++) operators.
I will demonstrate you how to implement an interface implicitly and explicitly in C#. Let's take an example to understand, what implicit and explicit implementation of interface is. I am going to create an interface named with “IEmployee” and a class named with “Employee”. When the class implements the interface member, it does not need to specify the interface name with the member name.