Function Overloading
|
|
- Abner Fowler
- 6 years ago
- Views:
Transcription
1 Function Overloading C++ supports writing more than one function with the same name but different argument lists How does the compiler know which one the programmer is calling? They have different signatures A function s signature is a combination of its name and its argument list the return type is not part of the signature so you can t overload just by changing return type 1
2 When you use function overloading, ambiguity can happen in 3 cases: 1. if you have call by reference and call by value with the same parameters types: void square (double& x) { x = x * x; void square (double x) { cout << x * x; 2. if there is no matching parameter type for a called function but variables can be automatically converted to appropriate types: int area (int height, int width) { return height * width; double area (double height, double width) { return height * width; 3. if you use default arguments: prototypes: void fcn(int a, int b = 9, double c = 1.33); void fcn(int a, int b); 2
3 Function Overloading (cont.) Suppose that we have a scenario such as: void swap (int *a, int *b); void swap (double *x, double *y); void swap (bool *p, bool *q); int main() { int i = 4, j = 6; double c = 13.2, d = 43.1; bool flag1 = TRUE, flag2 = FALSE; swap (&i, &j); swap (&c, &d); swap (&flag1, &flag2); with function definitions as shown on the next slide: 3
4 void swap (int *a, int *b) { int temp; temp = *a; *a = *b; *b = temp; void swap (double *x, double *y) { double temp; temp = *x; *x = *y; *y = temp; void swap (bool *p, bool *q) { bool temp; temp = *p; *p = *q; *q = temp; Each of these functions expects to see pointers as arguments the only difference is what kind of thing the pointer argument is pointing to The compiler matches up the signature in the function definition with the call so that the correct version gets invoked 4
5 Remember Function Templates No need for 3 different functions We could create a function template definition for swap the function template sets up the framework for the functions we need, then based on how the template is called, the compiler generates the necessary code Example: template <typename T> void swap(t *a, T *b) { T temp; temp = *a; *a = *b; *b = temp; the keyword template tells the compiler it s a function template this is the function s return type here it is void because the original swap functions had void return type everywhere a T occurs in the template, the compiler will substitute the correct type depending on the call to the function 5
6 One More (trivial) Template Example - template <class T> T square (T x) { return x * x; if called with an int argument, this will return an int result; if called with a double argument, it will return a double. 6
7 Object Oriented Design Where do we stand now? We ve talked about classes and their definition class definition in <classname>.h file this defines the interfaces for the class implementation of the methods in <classname>.cpp file We ve talked about constructors and destructors default constructor and overloaded constructors issues to consider when a class has a member that is dynamic order of method invocation as a program runs (explored through a trace of what happens in an example using the point class) We discussed copy constructors and saw an example 7
8 Just to remind you: Constructors: What Happens by Default If you do not define a constructor, the system will define a default constructor the default constructor is supposed to initialize all numeric types to 0, all pointers to null, and all Boolean types to false (but be careful check that it really does this!) If you do define a constructor, yours will be used whenever an object of this type is instantiated that is, whenever an object is declared or new or gcnew is called to create an object of this type If you provide a constructor that takes a nonvoid parameter, you must also provide a default constructor. objects of managed classes must always be declared as tracking handles (otherwise you ll get a compile error) 8
9 Destructors: What Happens by Default A destructor is a function that: Is automatically invoked when an object is destroyed i.e. at the end of the block in which an object was declared Performs termination housekeeping In particular, it recovers memory to be reused On block exit, destructors for objects declared in the block are called in reverse order of object instantiation (see class example) Takes no arguments and returns no value Has the same name as the class preceded by a ~ There is only one destructor for a class no overloading is possible The system automatically generates a destructor for a class, but Programmers do have to write a destructor when their class dynamically allocates memory (which can happen when data members are pointers or array names or CLI objects) 9
10 = Operators: What Happens by Default Ordinarily, the compiler will generate a default assignment operator a point class (that has two double data members) is an example of a case in which the = operator is automatically overloaded by the compiler If you define any assignment operator that takes the class as a parameter, the compiler cannot generate a default assignment operator for that class. In these cases, you have to provide an overloaded assignment operator 10
11 Why do we need a copy constructor? If a copy constructor is missing (for any class), the compiler creates a default one that performs member-by-member copying. For classes that have dynamic members, we need to have appropriate memberwise copy functions (we ve seen an example of why) Let s revisit the class MemberInfo that we looked at before We re going to look at 4 different ways to represent the same information then consider how statements execute differently (and why) 11
12 #pragma once #ifndef MEMB1 #define MEMB1 using namespace System; Class MemberInfo header: ref class MemberInfo{ public: MemberInfo(); MemberInfo(MemberInfo %); void entername(); void enterage(); String^ getname(); int getage(); void setname(string^); void setage(int); void display(); ~MemberInfo(); private: String ^name; int age; static int count; ; #endif // default constructor // copy constructor // method for entering name // method for entering age // method for extracting name // method for extracting age // method for setting name to a value // method for setting age to a value // method for display of the object s data // destructor 12
13 // MANAGED CLASS ref class MemberInfo{ public: static int count; MemberInfo(); MemberInfo(MemberInfo %); void entername(); void enterage(); String^ getname(); int getage(); void setname(string^); void setage(int); void display(); ~MemberInfo(); private: String ^name; int age; ; M_Info // STANDARD C++ CLASS // copy constructor w/ ref parameter class MemberInfo{ public: static int count; MemberInfo(); MemberInfo(MemberInfo &); void entername(); void enterage(); string* getname(); int getage(); void setname(string*); void setage(int); void display(); ~MemberInfo(); private: string * name; int age; ; Native M_Info2
14 // STANDARD C++ CLASS // pointer to string type data member class MemberInfo{ public: static int count; // STANDARD C++ CLASS // string type data member class MemberInfo{ public: static int count; private: ; MemberInfo(); MemberInfo(MemberInfo *); void entername(); void enterage(); string* getname(); int getage(); void setname(string*); void setage(int); void display(); ~MemberInfo(); string * name; int age; private: ; MemberInfo(); MemberInfo(MemberInfo &); void entername(); void enterage(); string getname(); int getage(); void setname(string); void setage(int); void display(); ~MemberInfo(); string name; int age; Native M_Info1 Native M_Info
15 What happens with = and ==? M_Info Has members MemberInfo(MemberInfo %); String ^name; Does not allow this sequence of statements MemberInfo ^n1, ^n2; *n1 = *n2; // error C2582: 'operator =' function is unavailable Allows this sequence of statements: if (n1 == n2) cout << "equal \n"; Native M_Info Has members MemberInfo(MemberInfo &); string name; Allows this sequence of statements: MemberInfo *n1, *n2; *n1 = *n2; Does not allow if (n1 == n2) cout << "equal \n"; Why should this allow ==? Executes the default assignment operator // error C2678: binary '==' : no operator found which takes a left-hand operand of type 'MemberInfo' (or there is no acceptable conversion)
16 What happens with = and ==? Native M_Info 1 Has members MemberInfo(MemberInfo *); string * name; int age; Allows MemberInfo *n1, *n2; *n1 = *n2; if (n1 == n2) cout << "equal \n"; Native M_Info 2 Has members MemberInfo(MemberInfo &); string* name; int age; Allows MemberInfo *n1, *n3; *n1 = *n3; if (n1 == n3) cout << "equal \n"; Why should this allow assignment and ==? Why should this allow assignment and ==? Moral of the story: Be sure you know what = (assignment) and == (equality test) really mean for your class!
17 Overloading Operators in C++ C++ allows the programmer to redefine the function of most built-in operators on a class-by-class basis the operator keyword is used to declare a function that specifies what an operator symbol (such as = or +) means when it is applied to instances of a class this gives the operator more than one meaning, and the compiler determines what meaning is intended by looking at the types of its operands syntax: type operator <operator-symbol> (parameter-list) Example: overloading the addition operator and the assignment operator for a class Complex that is intended to represent complex numbers
18 Example Class to represent complex numbers: header (class definition file) #pragma once #include <iostream> using namespace System; using namespace std; class Complex { public: Complex (); Complex (double r, double i); Complex operator+ (Complex &other); Complex & Complex::operator = (Complex &n); void display(); private: double re,im; ;
19 .cpp source (implementation) file for for class Complex #include "stdafx.h" #include " Complex.h" Complex::Complex (){ re = 0.0; im = 0.0; Complex::Complex(double r, double i){ re = r; im = i; Overloaded addition operator Complex Complex::operator + (Complex &other){ return Complex (re + other.re, im + other.im); Complex & Complex::operator = (Complex &n){ re = n.re; im = n.im; return *this; Overloaded assignment operator void Complex::display(){ cout << re << "," << im << endl;
20 Example of a small program using class Complex: #include "stdafx.h" #include <iostream> #include "Complex.h" using namespace System; using namespace std; int main(array<system::string ^> ^args) { Complex a = Complex(1.2, 3.4); Complex b(3.4, 5.6); Complex c; c = a + b; c.display(); return 0;
21 Not every operator can be overloaded! Operators that can be overloaded + - * / % ^ & ~! = < > += -= *= /= %= ^= &= = << >> >>= <<= ==!= <= >= && >*, -> [] () new delete new[] delete[] Operators that cannot be overloaded..* ::?: sizeof
Overloading Operators in C++
Overloading Operators in C++ C++ allows the programmer to redefine the function of most built-in operators on a class-by-class basis the operator keyword is used to declare a function that specifies what
More informationScope. Scope is such an important thing that we ll review what we know about scope now:
Scope Scope is such an important thing that we ll review what we know about scope now: Local (block) scope: A name declared within a block is accessible only within that block and blocks enclosed by it,
More informationImplementing an ADT with a Class
Implementing an ADT with a Class the header file contains the class definition the source code file normally contains the class s method definitions when using Visual C++ 2012, the source code and the
More informationObject Oriented Design
Object Oriented Design Chapter 9 Initializing a non-static data member in the class definition is a syntax error 1 9.2 Time Class Case Study In Fig. 9.1, the class definition is enclosed in the following
More informationPolymorphism Part 1 1
Polymorphism Part 1 1 What is Polymorphism? Polymorphism refers to a programming language s ability to process objects differently depending on their data type or class. Number person real complex kid
More informationRoxana Dumitrescu. C++ in Financial Mathematics
Roxana Dumitrescu C++ in Financial Mathematics What have we learnt? Arrays; relation between arrays and pointers.. Returning arrays from functions Passing arrays to functions Intoduction to classes Plan
More information3.Constructors and Destructors. Develop cpp program to implement constructor and destructor.
3.Constructors and Destructors Develop cpp program to implement constructor and destructor. Constructors A constructor is a special member function whose task is to initialize the objects of its class.
More informationFast Introduction to Object Oriented Programming and C++
Fast Introduction to Object Oriented Programming and C++ Daniel G. Aliaga Note: a compilation of slides from Jacques de Wet, Ohio State University, Chad Willwerth, and Daniel Aliaga. Outline Programming
More informationCS32 - Week 4. Umut Oztok. Jul 15, Umut Oztok CS32 - Week 4
CS32 - Week 4 Umut Oztok Jul 15, 2016 Inheritance Process of deriving a new class using another class as a base. Base/Parent/Super Class Derived/Child/Sub Class Inheritance class Animal{ Animal(); ~Animal();
More informationReference Parameters A reference parameter is an alias for its corresponding argument in the function call. Use the ampersand (&) to indicate that
Reference Parameters There are two ways to pass arguments to functions: pass-by-value and pass-by-reference. pass-by-value A copy of the argument s value is made and passed to the called function. Changes
More informationIntroduction to Classes
Introduction to Classes Procedural and Object-Oriented Programming Procedural and Object-Oriented Programming Procedural programming focuses on the process/actions that occur in a program Object-Oriented
More informationCSCE 110 PROGRAMMING FUNDAMENTALS
CSCE 110 PROGRAMMING FUNDAMENTALS WITH C++ Prof. Amr Goneid AUC Part 15. Dictionaries (1): A Key Table Class Prof. amr Goneid, AUC 1 Dictionaries(1): A Key Table Class Prof. Amr Goneid, AUC 2 A Key Table
More informationLab 2: ADT Design & Implementation
Lab 2: ADT Design & Implementation By Dr. Yingwu Zhu, Seattle University 1. Goals In this lab, you are required to use a dynamic array to design and implement an ADT SortedList that maintains a sorted
More informationCh02. True/False Indicate whether the statement is true or false.
Ch02 True/False Indicate whether the statement is true or false. 1. The base class inherits all its properties from the derived class. 2. Inheritance is an is-a relationship. 3. In single inheritance,
More informationChapter 13: Introduction to Classes Procedural and Object-Oriented Programming
Chapter 13: Introduction to Classes 1 13.1 Procedural and Object-Oriented Programming 2 Procedural and Object-Oriented Programming Procedural programming focuses on the process/actions that occur in a
More informationIntroduction to C++ Systems Programming
Introduction to C++ Systems Programming Introduction to C++ Syntax differences between C and C++ A Simple C++ Example C++ Input/Output C++ Libraries C++ Header Files Another Simple C++ Example Inline Functions
More informationWhat is Polymorphism? Quotes from Deitel & Deitel s. Why polymorphism? How? How? Polymorphism Part 1
Polymorphism Part 1 What is Polymorphism? Polymorphism refers to a programming language s ability to process objects differently depending on their data type or class. Number person real complex kid adult
More informationPOLYMORPHISM 2 PART Abstract Classes Static and Dynamic Casting Common Programming Errors
POLYMORPHISM 2 PART Abstract Classes Static and Dynamic Casting Common Programming Errors CSC 330 OO Software Design 1 Abstract Base Classes class B { // base class virtual void m( ) =0; // pure virtual
More informationPOLYMORPHISM 2 PART. Shared Interface. Discussions. Abstract Base Classes. Abstract Base Classes and Pure Virtual Methods EXAMPLE
Abstract Base Classes POLYMORPHISM 2 PART Abstract Classes Static and Dynamic Casting Common Programming Errors class B { // base class virtual void m( ) =0; // pure virtual function class D1 : public
More informationCSC1322 Object-Oriented Programming Concepts
CSC1322 Object-Oriented Programming Concepts Instructor: Yukong Zhang February 18, 2016 Fundamental Concepts: The following is a summary of the fundamental concepts of object-oriented programming in C++.
More informationC:\Temp\Templates. Download This PDF From The Web Site
11 2 2 2 3 3 3 C:\Temp\Templates Download This PDF From The Web Site 4 5 Use This Main Program Copy-Paste Code From The Next Slide? Compile Program 6 Copy/Paste Main # include "Utilities.hpp" # include
More informationCS2141 Software Development using C/C++ C++ Basics
CS2141 Software Development using C/C++ C++ Basics Integers Basic Types Can be short, long, or just plain int C++ does not define the size of them other than short
More informationInterview Questions of C++
Interview Questions of C++ Q-1 What is the full form of OOPS? Ans: Object Oriented Programming System. Q-2 What is a class? Ans: Class is a blue print which reflects the entities attributes and actions.
More informationCpt S 122 Data Structures. Introduction to C++ Part II
Cpt S 122 Data Structures Introduction to C++ Part II Nirmalya Roy School of Electrical Engineering and Computer Science Washington State University Topics Objectives Defining class with a member function
More informationWelcome Back. CSCI 262 Data Structures. Hello, Let s Review. Hello, Let s Review. How to Review 8/19/ Review. Here s a simple C++ program:
Welcome Back CSCI 262 Data Structures 2 - Review What you learned in CSCI 261 (or equivalent): Variables Types Arrays Expressions Conditionals Branches & Loops Functions Recursion Classes & Objects Streams
More informationChapter 6: User-Defined Functions. Objectives (cont d.) Objectives. Introduction. Predefined Functions 12/2/2016
Chapter 6: User-Defined Functions Objectives In this chapter, you will: Learn about standard (predefined) functions Learn about user-defined functions Examine value-returning functions Construct and use
More informationIntroduction Of Classes ( OOPS )
Introduction Of Classes ( OOPS ) Classes (I) A class is an expanded concept of a data structure: instead of holding only data, it can hold both data and functions. An object is an instantiation of a class.
More informationCS201 Some Important Definitions
CS201 Some Important Definitions For Viva Preparation 1. What is a program? A program is a precise sequence of steps to solve a particular problem. 2. What is a class? We write a C++ program using data
More informationIntroducing C++ to Java Programmers
Introducing C++ to Java Programmers by Kip Irvine updated 2/27/2003 1 Philosophy of C++ Bjarne Stroustrup invented C++ in the early 1980's at Bell Laboratories First called "C with classes" Design Goals:
More information(5 2) Introduction to Classes in C++ Instructor - Andrew S. O Fallon CptS 122 (February 7, 2018) Washington State University
(5 2) Introduction to Classes in C++ Instructor - Andrew S. O Fallon CptS 122 (February 7, 2018) Washington State University Key Concepts Function templates Defining classes with member functions The Rule
More informationLecture 5. Function Pointers
Lecture 5 Pointers to functions Complicated declarations Allocating and deallocating memory Classes const member functions Constructors and destructor this pointer static members Templates Lec 5 Programming
More informationCHAPTER 1 Introduction to Computers and Programming CHAPTER 2 Introduction to C++ ( Hexadecimal 0xF4 and Octal literals 031) cout Object
CHAPTER 1 Introduction to Computers and Programming 1 1.1 Why Program? 1 1.2 Computer Systems: Hardware and Software 2 1.3 Programs and Programming Languages 8 1.4 What is a Program Made of? 14 1.5 Input,
More information7.1 Optional Parameters
Chapter 7: C++ Bells and Whistles A number of C++ features are introduced in this chapter: default parameters, const class members, and operator extensions. 7.1 Optional Parameters Purpose and Rules. Default
More informationShort Notes of CS201
#includes: Short Notes of CS201 The #include directive instructs the preprocessor to read and include a file into a source code file. The file name is typically enclosed with < and > if the file is a system
More informationWelcome Back. CSCI 262 Data Structures. Hello, Let s Review. Hello, Let s Review. How to Review 1/9/ Review. Here s a simple C++ program:
Welcome Back CSCI 262 Data Structures 2 - Review What you learned in CSCI 261 (or equivalent): Variables Types Arrays Expressions Conditionals Branches & Loops Functions Recursion Classes & Objects Streams
More informationGovernment Polytechnic, Muzaffarpur. Name of the Lab: OBJECT ORIENTED PROGRAMMING
Government Polytechnic, Muzaffarpur. Name of the Lab: OBJECT ORIENTED PROGRAMMING THROUGH C++ Practical: OOPS THROUGH C++ Subject Code: 1618407 PROGRAM NO.1 Programming exercise on executing a Basic C++
More informationOperator overloading
1 Introduction 2 The copy constructor 3 Operator Overloading 4 Eg 1: Adding two vectors 5 The -> operator 6 The this pointer 7 Overloading = 8 Unary operators 9 Overloading for the matrix class 10 The
More informationCS201 - Introduction to Programming Glossary By
CS201 - Introduction to Programming Glossary By #include : The #include directive instructs the preprocessor to read and include a file into a source code file. The file name is typically enclosed with
More informationMore Functions. Pass by Value. Example: Exchange two numbers. Storage Classes. Passing Parameters by Reference. Pass by value and by reference
Pass by Value More Functions Different location in memory Changes to the parameters inside the function body have no effect outside of the function. 2 Passing Parameters by Reference Example: Exchange
More informationPIC 10A Objects/Classes
PIC 10A Objects/Classes Ernest Ryu UCLA Mathematics Last edited: November 13, 2017 User-defined types In C++, we can define our own custom types. Object is synonymous to variable, and class is synonymous
More informationObject-Oriented Design (OOD) and C++
Chapter 2 Object-Oriented Design (OOD) and C++ At a Glance Instructor s Manual Table of Contents Chapter Overview Chapter Objectives Instructor Notes Quick Quizzes Discussion Questions Projects to Assign
More informationC++ Mini Lessons Last Update: Feb 7, 2018
C++ Mini Lessons Last Update: Feb 7, 2018 From http://www.onlineprogramminglessons.com These C++ mini lessons will teach you all the C++ Programming statements you need to know, so you can write 90% of
More informationConstructor - example
Constructors A constructor is a special member function whose task is to initialize the objects of its class. It is special because its name is same as the class name. The constructor is invoked whenever
More informationObject-Oriented Programming
- oriented - iuliana@cs.ubbcluj.ro Babes-Bolyai University 2018 1 / 56 Overview - oriented 1 2 -oriented 3 4 5 6 7 8 Static and friend elements 9 Summary 2 / 56 I - oriented was initially created by Bjarne
More informationModule Operator Overloading and Type Conversion. Table of Contents
1 Module - 33 Operator Overloading and Type Conversion Table of Contents 1. Introduction 2. Operator Overloading 3. this pointer 4. Overloading Unary Operators 5. Overloading Binary Operators 6. Overloading
More informationNote 12/1/ Review of Inheritance Practice: Please write down 10 most important facts you know about inheritance...
CISC 2000 Computer Science II Fall, 2014 Note 12/1/2014 1 Review of Inheritance Practice: Please write down 10 most important facts you know about inheritance... (a) What s the purpose of inheritance?
More informationMidterm Review. PIC 10B Spring 2018
Midterm Review PIC 10B Spring 2018 Q1 What is size t and when should it be used? A1 size t is an unsigned integer type used for indexing containers and holding the size of a container. It is guarenteed
More informationAN OVERVIEW OF C++ 1
AN OVERVIEW OF C++ 1 OBJECTIVES Introduction What is object-oriented programming? Two versions of C++ C++ console I/O C++ comments Classes: A first look Some differences between C and C++ Introducing function
More informationLesson 13 - Vectors Dynamic Data Storage
Lesson 13 - Vectors Dynamic Data Storage Summary In this lesson we introduce the Standard Template Library by demonstrating the use of Vectors to provide dynamic storage of data elements. New Concepts
More informationChapter 9 Classes : A Deeper Look, Part 1
Chapter 9 Classes : A Deeper Look, Part 1 C++, How to Program Deitel & Deitel Fall 2016 CISC1600 Yanjun Li 1 Time Class Case Study Time Class Definition: private data members: int hour; int minute; int
More informationCS3157: Advanced Programming. Outline
CS3157: Advanced Programming Lecture #12 Apr 3 Shlomo Hershkop shlomo@cs.columbia.edu 1 Outline Intro CPP Boring stuff: Language basics: identifiers, data types, operators, type conversions, branching
More informationTEMPLATE IN C++ Function Templates
TEMPLATE IN C++ Templates are powerful features of C++ which allows you to write generic programs. In simple terms, you can create a single function or a class to work with different data types using templates.
More informationADTs in C++ In C++, member functions can be defined as part of a struct
In C++, member functions can be defined as part of a struct ADTs in C++ struct Complex { ; void Complex::init(double r, double i) { im = i; int main () { Complex c1, c2; c1.init(3.0, 2.0); c2.init(4.0,
More informationC How to Program, 6/e, 7/e
C How to Program, 6/e, 7/e prepared by SENEM KUMOVA METİN modified by UFUK ÇELİKKAN and ILKER KORKMAZ The textbook s contents are also used 1992-2010 by Pearson Education, Inc. All Rights Reserved. Two
More informationCAAM 420 Fall 2012 Lecture 29. Duncan Eddy
CAAM 420 Fall 2012 Lecture 29 Duncan Eddy November 7, 2012 Table of Contents 1 Templating in C++ 3 1.1 Motivation.............................................. 3 1.2 Templating Functions........................................
More informationIII. Classes (Chap. 3)
III. Classes III-1 III. Classes (Chap. 3) As we have seen, C++ data types can be classified as: Fundamental (or simple or scalar): A data object of one of these types is a single object. int, double, char,
More informationChapter 2. Procedural Programming
Chapter 2 Procedural Programming 2: Preview Basic concepts that are similar in both Java and C++, including: standard data types control structures I/O functions Dynamic memory management, and some basic
More informationl Operators such as =, +, <, can be defined to l The function names are operator followed by the l Otherwise they are like normal member functions:
Operator Overloading & Templates Week 6 Gaddis: 14.5, 16.2-16.4 CS 5301 Spring 2018 Jill Seaman Operator Overloading l Operators such as =, +,
More information2 2
1 2 2 3 3 C:\Temp\Templates 4 5 Use This Main Program 6 # include "Utilities.hpp" # include "Student.hpp" Copy/Paste Main void MySwap (int Value1, int Value2); int main(int argc, char * argv[]) { int A
More informationAgenda. The main body and cout. Fundamental data types. Declarations and definitions. Control structures
The main body and cout Agenda 1 Fundamental data types Declarations and definitions Control structures References, pass-by-value vs pass-by-references The main body and cout 2 C++ IS AN OO EXTENSION OF
More informationInstantiation of Template class
Class Templates Templates are like advanced macros. They are useful for building new classes that depend on already existing user defined classes or built-in types. Example: stack of int or stack of double
More information2 ADT Programming User-defined abstract data types
Preview 2 ADT Programming User-defined abstract data types user-defined data types in C++: classes constructors and destructors const accessor functions, and inline functions special initialization construct
More information! Operators such as =, +, <, can be defined to. ! The function names are operator followed by the. ! Otherwise they are like normal member functions:
Operator Overloading, Lists and Templates Week 6 Gaddis: 14.5, 16.2-16.4 CS 5301 Spring 2016 Jill Seaman Operator Overloading! Operators such as =, +,
More informationA brief introduction to C++
A brief introduction to C++ Rupert Nash r.nash@epcc.ed.ac.uk 13 June 2018 1 References Bjarne Stroustrup, Programming: Principles and Practice Using C++ (2nd Ed.). Assumes very little but it s long Bjarne
More informationRecharge (int, int, int); //constructor declared void disply();
Constructor and destructors in C++ Constructor Constructor is a special member function of the class which is invoked automatically when new object is created. The purpose of constructor is to initialize
More informationCS201- Introduction to Programming Current Quizzes
CS201- Introduction to Programming Current Quizzes Q.1 char name [] = Hello World ; In the above statement, a memory of characters will be allocated 13 11 12 (Ans) Q.2 A function is a block of statements
More informationHomework 5. Yuji Shimojo CMSC 330. Instructor: Prof. Reginald Y. Haseltine
Homework 5 Yuji Shimojo CMSC 330 Instructor: Prof. Reginald Y. Haseltine July 13, 2013 Question 1 Consider the following Java definition of a mutable string class. class MutableString private char[] chars
More informationOBJECT ORIENTED PROGRAMMING
Classes and Objects So far you have explored the structure of a simple program that starts execution at main() and enables you to declare local and global variables and constants and branch your execution
More informationCSCI 123 Introduction to Programming Concepts in C++
CSCI 123 Introduction to Programming Concepts in C++ Brad Rippe Brad Rippe More Classes and Dynamic Arrays Overview 11.4 Classes and Dynamic Arrays Constructors, Destructors, Copy Constructors Separation
More informationLecture 7. Log into Linux New documents posted to course webpage
Lecture 7 Log into Linux New documents posted to course webpage Coding style guideline; part of project grade is following this Homework 4, due on Monday; this is a written assignment Project 1, due next
More informationAbstraction in Software Development
Abstract Data Types Programmer-created data types that specify values that can be stored (type of data) operations that can be done on the values The user of an abstract data type (ADT) does not need to
More informationCpt S 122 Data Structures. Course Review Midterm Exam # 2
Cpt S 122 Data Structures Course Review Midterm Exam # 2 Nirmalya Roy School of Electrical Engineering and Computer Science Washington State University Midterm Exam 2 When: Monday (11/05) 12:10 pm -1pm
More informationCOEN244: Class & function templates
COEN244: Class & function templates Aishy Amer Electrical & Computer Engineering Templates Function Templates Class Templates Outline Templates and inheritance Introduction to C++ Standard Template Library
More informationDistributed Real-Time Control Systems. Lecture 17 C++ Programming Intro to C++ Objects and Classes
Distributed Real-Time Control Systems Lecture 17 C++ Programming Intro to C++ Objects and Classes 1 Bibliography Classical References Covers C++ 11 2 What is C++? A computer language with object oriented
More informationIncreases Program Structure which results in greater reliability. Polymorphism
UNIT 4 C++ Inheritance What is Inheritance? Inheritance is the process by which new classes called derived classes are created from existing classes called base classes. The derived classes have all the
More informationImplementing Abstract Data Types (ADT) using Classes
Implementing Abstract Data Types (ADT) using Classes Class Definition class classname { public: //public member functions private: //private data members and member functions }; // Note the semicolon!
More informationCMSC 341 Lecture 6 Templates, Stacks & Queues. Based on slides by Shawn Lupoli & Katherine Gibson at UMBC
CMSC 341 Lecture 6 Templates, Stacks & Queues Based on slides by Shawn Lupoli & Katherine Gibson at UMBC Today s Topics Data types in C++ Overloading functions Templates How to implement them Possible
More informationClasses. Christian Schumacher, Info1 D-MAVT 2013
Classes Christian Schumacher, chschuma@inf.ethz.ch Info1 D-MAVT 2013 Object-Oriented Programming Defining and using classes Constructors & destructors Operators friend, this, const Example Student management
More informationAnd Even More and More C++ Fundamentals of Computer Science
And Even More and More C++ Fundamentals of Computer Science Outline C++ Classes Special Members Friendship Classes are an expanded version of data structures (structs) Like structs, the hold data members
More informationObject Oriented Design Final Exam (From 3:30 pm to 4:45 pm) Name:
Object Oriented Design Final Exam (From 3:30 pm to 4:45 pm) Name: Section 1 Multiple Choice Questions (40 pts total, 2 pts each): Q1: Employee is a base class and HourlyWorker is a derived class, with
More informationClasses: Member functions // classes example #include <iostream> using namespace std; Objects : Reminder. Member functions: Methods.
Classes: Methods, Constructors, Destructors and Assignment For : COP 3330. Object oriented Programming (Using C++) http://www.compgeom.com/~piyush/teach/3330 Piyush Kumar Classes: Member functions // classes
More informationClass and Function Templates
Class and Function 1 Motivation for One Way to Look at... Example: Queue of some type Foo C++ What can a parameter be used for? Instantiating a Template Usage of Compiler view of templates... Implementing
More informationADTs & Classes. An introduction
ADTs & Classes An introduction Quick review of OOP Object: combination of: data structures (describe object attributes) functions (describe object behaviors) Class: C++ mechanism used to represent an object
More informationInheritance, and Polymorphism.
Inheritance and Polymorphism by Yukong Zhang Object-oriented programming languages are the most widely used modern programming languages. They model programming based on objects which are very close to
More informationCome and join us at WebLyceum
Come and join us at WebLyceum For Past Papers, Quiz, Assignments, GDBs, Video Lectures etc Go to http://www.weblyceum.com and click Register In Case of any Problem Contact Administrators Rana Muhammad
More informationMotivation for Templates. Class and Function Templates. One Way to Look at Templates...
Class and Function 1 Motivation for 2 Motivation for One Way to Look at... Example: Queue of some type Foo C++ What can a parameter be used for? Instantiating a Template Usage of Compiler view of templates...
More informationSRM ARTS AND SCIENCE COLLEGE SRM NAGAR, KATTANKULATHUR
SRM ARTS AND SCIENCE COLLEGE SRM NAGAR, KATTANKULATHUR 603203 DEPARTMENT OF COMPUTER SCIENCE & APPLICATIONS QUESTION BANK (2017-2018) Course / Branch : M.Sc CST Semester / Year : EVEN / II Subject Name
More informationPaytm Programming Sample paper: 1) A copy constructor is called. a. when an object is returned by value
Paytm Programming Sample paper: 1) A copy constructor is called a. when an object is returned by value b. when an object is passed by value as an argument c. when compiler generates a temporary object
More informationCSI33 Data Structures
Outline Department of Mathematics and Computer Science Bronx Community College November 22, 2017 Outline Outline 1 Chapter 12: C++ Templates Outline Chapter 12: C++ Templates 1 Chapter 12: C++ Templates
More informationCPSC 427: Object-Oriented Programming
CPSC 427: Object-Oriented Programming Michael J. Fischer Lecture 7 September 21, 2016 CPSC 427, Lecture 7 1/21 Brackets Example (continued) Storage Management CPSC 427, Lecture 7 2/21 Brackets Example
More informationC++ PROGRAMMING LANGUAGE: CLASSES. CAAM 519, CHAPTER 13
C++ PROGRAMMING LANGUAGE: CLASSES. CAAM 519, CHAPTER 13 This chapter focuses on introducing the notion of classes in the C++ programming language. We describe how to create class and use an object of a
More informationMore About Classes. Gaddis Ch. 14, CS 2308 :: Fall 2015 Molly O'Neil
More About Classes Gaddis Ch. 14, 13.3 CS 2308 :: Fall 2015 Molly O'Neil Pointers to Objects Just like pointers to structures, we can define pointers to objects Time t1(12, 20, true); Time *tptr; tptr
More informationTemplates (again) Professor Hugh C. Lauer CS-2303, System Programming Concepts
Templates (again) Professor Hugh C. Lauer CS-2303, System Programming Concepts (Slides include materials from The C Programming Language, 2 nd edition, by Kernighan and Ritchie, Absolute C++, by Walter
More informationPIC 10A. Lecture 17: Classes III, overloading
PIC 10A Lecture 17: Classes III, overloading Function overloading Having multiple constructors with same name is example of something called function overloading. You are allowed to have functions with
More informationOperator Overloading and Templates. Linear Search. Linear Search in C++ second attempt. Linear Search in C++ first attempt
Operator Overloading and Templates Week 6 Gaddis: 8.1, 14.5, 16.2-16.4 CS 5301 Fall 2015 Jill Seaman Linear Search! Search: find a given target item in an array, return the index of the item, or -1 if
More informationComputational Physics
Computational Physics numerical methods with C++ (and UNIX) 2018-19 Fernando Barao Instituto Superior Tecnico, Dep. Fisica email: fernando.barao@tecnico.ulisboa.pt Computational Physics 2018-19 (Phys Dep
More informationCome and join us at WebLyceum
Come and join us at WebLyceum For Past Papers, Quiz, Assignments, GDBs, Video Lectures etc Go to http://www.weblyceum.com and click Register In Case of any Problem Contact Administrators Rana Muhammad
More informationModern C++ for Computer Vision and Image Processing. Igor Bogoslavskyi
Modern C++ for Computer Vision and Image Processing Igor Bogoslavskyi Outline Move semantics Classes Operator overloading Making your class copyable Making your class movable Rule of all or nothing Inheritance
More informationProgramming C++ Lecture 3. Howest, Fall 2012 Instructor: Dr. Jennifer B. Sartor
Programming C++ Lecture 3 Howest, Fall 2012 Instructor: Dr. Jennifer B. Sartor Jennifer.sartor@elis.ugent.be S Inheritance S Software reuse inherit a class s data and behaviors and enhance with new capabilities.
More informationOperator Overloading in C++ Systems Programming
Operator Overloading in C++ Systems Programming Operator Overloading Fundamentals of Operator Overloading Restrictions on Operator Overloading Operator Functions as Class Members vs. Global Functions Overloading
More information