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Arithmetic Operations using Operator Overloading
Write a program for all the four arithmetic operations in float data type using operator overloading concept.
harsha419
- Jan 21st, 2010
Addition Operator:-----------------------------------------------------Complex operator +( const Complex &temp){ Complex ctemp; ctemp.m_real = m_real+ temp.m_real; ctem...
avinashk60
- Jan 19th, 2010
const ComplexNo& ComplexNo::operator+(const ComplexNo &b) { ComplexNo &result = *this; i = i + b.i; j = j + b.j; return result; };
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What should you do gain access to Private Base Class Data
tapan.gajera
- Jan 3rd, 2010
B. You should use a public or protected base class function.Example: class Base{private: int a;public: Base() {a = 5;} &nbs...
j_l_larson
- Oct 19th, 2009
F. None of the above are entirely the right answerYou can provide a method in the base class to allow the private data to be read or written and then provide an access specifier in the derived class w...
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Invoke the virtual toString() function
To invoke the virtual toString() function defined in GeometricObject from a Circle object c, use :A. ((GeometricObject*)c)->toString();B. c.super.toString()C. (GeometricObject*)c->toString();D. c->GeometricObject::toString()
vijay.badola
- Dec 31st, 2009
If we take the following class definitions:class CGeometricObject{public:virtual void toString(){ printf("I am in base");}};class Circle : public GeometricObject{public:void toString(){...
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What is placement new?
sachin_mundhra
- Dec 18th, 2009
Using placement new operator user can allocate memory in a specific memory address. Example: SomeClass at a particular memory address stored in a pointer type variable named pmem new(pmem) SomeClass;
vidhudatta
- Sep 23rd, 2009
Placement syntax allows programmers to explicitly specify memory management of objects. The placement versions of new operator is called placement new.
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What is the difference between operator new and the new operator?
sachin_mundhra
- Dec 18th, 2009
Operator new works like malloc. Example:int *n; n = (int*) operator new(sizeof(int)); New Operator does the following:1) Calculate the memory 2) Allocate memory using operator new 3) Call the Constructor
satheesh83
- Oct 16th, 2009
New operator allows to allocate a memory from the heap, so a new instance of a class is created but operator New is used to overload the (new) operator just like overloading of other operators. A...
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We can overload assignment operator as a normal function.But we can not overload assignment operator as friend function why?
sachin_mundhra
- Dec 18th, 2009
Because assignment operator is one of the default method provided by the class.
sumanjit
- Sep 15th, 2005
If the operation modifies the state of the class object, it operates on, it must be a member function, not a friend fucntionThus all operator such as =, *=, +=, etc are naturally defined asmember func...
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Find nth node from end of a singly linked list
j_l_larson
- Oct 19th, 2009
node*GetNthFromEnd(node* pHead, int n) { if ( ! pHead ) return NULL; int i = 0; node* p = pHead; node* ...
Apoorv
- Feb 16th, 2007
A simple way out would be..Use two pointers..*traverse and *nth_positionboth initialised to null..While you traverse to the end of the list using *traverse,let *nth_position follow only after n iterat...
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Concatenate two circular linked lists
Write a program to concatenate two circular linked lists into a single circular list.
j_l_larson
- Oct 19th, 2009
class node {public: node(int n) : m_n(n) { m_pNext = this; } ~node() {} void SetNext( node* p ) { m_pNext = p; } node* GetNext() const { return m_pNext; }&n...
Bhimasena
- Jul 13th, 2009
Void cat(Node* ll1, Node* ll2){Node* temp = ll1->next;ll1->next = ll2->next;ll2->next = temp;}
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Reversing Linked List
How to reverse a linked list using only one pointer?
jjoshi
- Oct 9th, 2009
Void revshow(){struct node *p;int temp[100],count=0,i;p=head;for(i=0;p!=NULL;i++,p=p->next)temp[i]=p->num;for(i=i-1,p=head;p!=NULL;i--,p=p->next)p->num=temp[i];}
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How will you detect if there is memory leak in your C++ program?
vijay.badola
- Oct 4th, 2009
In LINUX environment one can use VALGRIND and MPATROL free tools to find out possible memory leaks in programs.
santhosh.kanchanapally
- Feb 18th, 2009
By overloading the new and delete operators, we can find the memory leaks as shown in following program ,#include "stdafx.h"#include <iostream>#include <string>using namespace st...
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Count Number of characters using Pointers
Write a program to count the number of characters in a string using pointers.
madhuti
- Sep 29th, 2009
Int main(void) { char* str = "Hellolklklk"; int i=0; for(i=0; *str; i++, str++); printf("count= %dn", i);return 0;}
paindriven
- Jun 12th, 2009
unsigned int charCounter(char const* str){ unsigned int counter = 0; char const* data = str; while (data != NULL && *data != '') { data++; counter++; } return counter;}
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How can I instantiate only three instances of an application ?If I open 4th instance, I have to close 1st instance like wise if I open 5th one I have to close 2nd one automatically ?
newlife
- Sep 24th, 2009
This can be done using one static variable which will keep account of object and a list which has object reference. In constructor check if static variable is 4 then remove one object from list and ad...
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Is it possible to implement Polymorphism (either compile time / runtime) in “C” ? If yes how?
Ashwan
- Jul 26th, 2007
Dont have as such idea whether we can explicitly implement the Polymorphism or not.....but internally it gets done incase of "C".Consider the example of printf/scanf.? Both are library functions and?...
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Suppose there is a txt file with following format:Student name Grades in subjectsX ABA+CDA+Y B+CAA+AAthere can be many students with there grades in various subjects. (number of subjects are unknown)Possible values of grade are: A, A+, B, B+, C, D now suppose the file gets corrupted and all '+' are replaced by 'A'Write a program to restore the file
MumblesCrzy
- Sep 24th, 2009
So I don't know if it's possible to make a perfect program, but one that can get a close estimate would go as such.If all the +'s in the files have been changed to A's then the two exa...
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What is an iterator?
vidhudatta
- Sep 23rd, 2009
Iterator is an object that allows the programmer to traverse through the entire collection.
shwetashreemal
- Jul 25th, 2009
Iterator is a class that is used to traverse through the objects maintained by a container class.these are five types are:-1.Input iterator2.output iterator3.forward iterator4.bidirectional iterator5....
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Define copy constructor? What is the use of copy constructor?
rajangidwani
- Sep 8th, 2009
Copy constructor is 1. a constructor function with the same name as the class 2. used to make deep copy of objects. There are 3 important places where a copy constructor is called. 1. When an object i...
vss
- Jun 29th, 2006
A copy constructor is used to initialize a newly declared variable from an existing variableA variable is declared which is initialized from another object,A value parameter is initialized from its co...
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Inline Function Advantages
What are the advantages of inline functions over macros?
ashwin2090
- Aug 28th, 2009
Inline function very much confused to use it or not.Well I want to just tell you that it has large number of disadvantages than advantages Inline function works faster than normal function. They are ...
AnisHasan
- Jul 16th, 2009
Beside the adventages which are mentioned there are some more advantages of Inline Functions over Macros1> Macro call is resolve at the compile time and compiler replce Identifier with charecter se...
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Top Down and Bottom up Approach
Why we fallow top down approach in c-language and bottom up approach in c++?explain?
angira
- Aug 22nd, 2009
Top-down approach views from generalizaton to specilization where as bottom-up approach does the reverse of it.
shantanu_hbd
- Apr 25th, 2009
When we follow OOP in C++ we first design our classes based on the domain model or the design. While in C where we don't follow OOP we try to address problem at a higher level and then try designing ...
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Default Constructor
What is the Default Constructor?
shreya_sen
- Aug 20th, 2009
A default constructor is a type of constructor which does not have any arguments/parameters.Thus it is executed as the object is created.
VENKATGOPU
- Jun 10th, 2009
The deafual constructor is a constructor. It may be contains arguemnets (default arquemnets) or It may not be contains arquemnetExampleclass A{ public: &...
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Why Pointers are not used in C Language. What are the main differences between C and C++
C++ Interview Questions
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