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What is the compilation difference at the compiler level for C++, VC++ and C# ?
berezleon
- Dec 2nd, 2007
Chandima, .NET compiles code into MSIL - Microsoft Intermediate Language, not CIL - it's not known )
Chandima Prematillake
- Sep 23rd, 2007
VC++ is the Microsoft's implementation of C++. Each C++ compiler might compile the code differently. However, all C++ compilers compiles C++ code into Native code. VC++ do the same. C# however, co...
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Advantages of using Pointer
jaihind007
- Jul 15th, 2008
Advantages:* Increasing the programming performance , Using pointers we can able to access the variables faster* Dynamic memory management * Data structure handling (Linkedlist, Stack ,Queue, Data dictionary,....)* File management using FILE pointer
wanttochange
- Jan 10th, 2008
u want advantage 1)can return more then 1 value from a function2)no need to pass the entire object to a function..can pass just the address3)if we want our object to be modify by some function th...
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Auto Pointer
What is auto pointer ? What is the use of this ?
jaihind007
- Jul 15th, 2008
Auto pointer is nothing but, Proper memory management ( memory Allocation and deallocation).In C++ there is class template "auto_ptr" this is good example for auto pointer. Only we need to a...
vamsip
- May 6th, 2008
1. using printf scanf("%c",&ele); //read charecter printf("ascii= %d",ele); //print it acsii value
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OBJECT and INSTANCE
What Is The Difference Between Object and Instance?
chandrakala Kempapura
- Jun 9th, 2008
If you declare a variable inside the class is called an instance of the variable inside class. Class A{ int x;// instance of the variable}; You can access the same variable/instance though the ob...
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Modular Structered and OOPS
Compare Modular Structered Programming and Object Oriented Programming
mucdull
- Nov 15th, 2008
Modular programming promotes the separation of a program into components called modules. Interfaces act as the logical boundaries between modules which express elements that are provided and...
veerun14
- Sep 25th, 2008
In Modular programming everything is broken down into modules performing a constituent task. Object Oriented programming revolves around a real world object. A Car Object is different from a driver Ob...
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C++ Default Function
What are the four functions that compiler automatically provides? How can you prevent compiler to provide automatically?
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C++ Interface
Is it possible to create an interface in C++? If Yes, how?
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Execute Destructor
When is a destructor executed?
newlife
- Jul 4th, 2009
It is called automatically whenever life of object ended. we need not to call it separtely.
yudhisthira_attry
- Dec 4th, 2008
When object goes out of scope or if you delete the object which is created by new operator on heap.
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Dynamic Binding
Why is Dynamic binding (regarding DLLs) are considered better in comparison with static binding? What are DLLs and how they work?
ajrobb
- Sep 22nd, 2010
Dynamic binding in MS Windows or shared objects in Unix are libraries compiled with position-independent code that are similar to program files. Their advantages include:1. Different programs using th...
sim_sam
- Feb 13th, 2009
While generating the binary executable, a compiler have two options:1. It can include the helper libraries (third party libraries for example) with the exe file in binary form which increases the size...
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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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What is the difference between parameter and argument?
sanjayojha02
- Apr 8th, 2009
The values we are passing at the time of calling a function are called arguments.and the values that get received in some variable during function call are called parameters.
vinayak singh
- Dec 24th, 2008
A parameter represents a value that the procedure expects you to pass when you call it. The procedure's declaration defines its parameters.An argument represents the value you pass to a procedure ...
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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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Data Encapsulation
Which one of the statements concerning data encapsulation is FALSE? A. Data encapsulation lets the programmer create an object and then provide an interface that other objects can use to invoke the methods provided by that object. B. Programmers can change the internal working of an object, but this may be transparent as long as the interface remains unchanged. C. Data encapsulation works well for...
tewari2312
- Jun 13th, 2009
E is false, because encapsulation decreases the complexity of the program (encapsulation is to wrap data and associated functions into a single unit called class)
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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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Base Class Destructor
In C++, which of following statements accurately describe a base class destructor calling a virtual function override of a derived class?A. the base class destructor calls the virtual function of the base class and not of the derived class.B. the base class destructor calls the virtual function override of the derived class through th vtable.C. the C++ compiler maintains the overridden virtual function...
Thunder2010
- Jun 15th, 2010
Explanation:In C++, if you call a virtual function from a constructor or destructor, the compiler calls the instance of the virtual function defined for the class being constructed (for example, Base:...
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Two Dimension Array
A two dimension array can also be thought of asChoose one answer. a. Table. b. Array of arrays.c. A file.d. None of the above e. A and B
saritha1406
- Oct 13th, 2010
e A and BTwo dimensional arrays are epecially used in Computr programming & Accounting.It is represented in matrix format.
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Multi-Dimension Array Size
If you need a function that will handle multi-dimensional arrays, you must specify the following sizes inside the square brackets.Choose one answer. a. All sizes except the first dimension b. None of the sizes c. All sizes except the last dimension d. All the sizes
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Program Crash
When can it happen that before calling main function itself program gets crashed?
ajrobb
- Sep 22nd, 2010
I agree.However, there is a difference between global and static. Global objects have global linkage and can be referenced anywhere in the program. Static objects can have access restricted to the file or function where they are defined.
THenry
- Sep 8th, 2010
All global static objects will be created before main().Program has problem to instantiate them.
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Memory Allocation
Why is it suggested not to use malloc() or calloc() in C++ for memory allocation?
ajrobb
- Sep 22nd, 2010
There may be a clash between malloc() and new as they don't HAVE to use the same heap library routines. Also, for arrays of classe objects, new invokes the default constructor. For single class objects new allows you to choose a different constructor.
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Pointers Datatype
What is the datatype of pointer?
jbode
- Nov 19th, 2011
There is no single "pointer" data type; you have many pointer data types. A pointer to int may have a different size and representation from a pointer to char, which may have a different size and rep...
niharricky27
- Oct 10th, 2010
Pointer datatypes are actually the datatype of the variables whose address the pointer is going to store or point to.i.e. to point an integer value, the pointer should of the same datatype i.e. int type.
C++ Interview Questions
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