-
-
-
Fork () function
How does a process generates Child process using Fork() function.The concept of it.
For example: A process execute the code
fork()
fork()
fork()
Total Number of "child" process created is/are ? -
What are proxy objectives
burraganesh
- Dec 7th, 2008
Proxy objects are nothing but objects of proxy class.A proxy class is a class that provides an interface between actual class (implementation) and client.
dasam
- Mar 29th, 2007
A proxy class is a class that implements a list of interfaces specified at compile time. The proxy object typically holds a reference to an internal object that implements the same interfaces (or parts of them).
-
Is Templates also a type of Static Polymorphism?
dasam
- Mar 29th, 2007
Template classes are used to implement function overloading, which is done during the compile time. So it is compile time polymorphism.
Sri
- Nov 20th, 2006
Yes...templates are static polymorphism...
-
How can i overload the subscript operator with more than i dimension? if possible give an example.. pls dont ignore
prashantha shet
- Oct 7th, 2007
If your question is about how to write an operator overload with multiple dimensions, then you can overload operator (). The [] operator is a binary operator with an implied "this". This means you can...
-
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...
-
What is Smart Pointer?
remoprakash
- Jul 24th, 2007
Smart pointers are objects which store pointers to dynamically allocated (heap) objects. They behave much like built-in C++ pointers except that they automatically delete the object pointed to at the ...
Prakash
- Jul 24th, 2007
Smart pointers are objects which store pointers to dynamically allocated (heap) objects. They behave much like built-in C++ pointers except that they automatically delete the object pointed to at the ...
-
-
What is the dangling pointer in c++
jaihind007
- Jul 15th, 2008
Dangling pointer leads the memory leak problems. The following circumstances are memory leak ( dangling pointers ), not for good programming practice , try to avoid1) Try to avoid the empty object poi...
Ashwan
- Jul 26th, 2007
Dangling Pointer is a pointer pointing to either unallocated memory area or to the area that has already been freed. In simple words, Dangling pointer is the one that points no-where.
-
What is difference between malloc() and calloc() ?
paul.anuj
- Aug 5th, 2008
malloc() and calloc() both are use to allocate memory.malloc takes only one argument that is number of memory bytes, mostly we use sizeof() operator, which allocates the memory of that? number of byt...
baseersd
- Sep 18th, 2007
1) malloc() does not initialize the memory allocated. Hence garbage will be present calloc() initializes the allocated memory with 0.2) malloc() requires 2 arguments in the form of (...
-
What is the use of template in C++?
amandahh
- Nov 29th, 2007
With templates, you do not have to repeat the entire codes for different types.
baseersd
- Sep 18th, 2007
It makes the program more general.just take as an example,If we have written a program to find the binary sort of integers, then we can sort only integers. At some point of time i want to sort charact...
-
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...
-
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...
-
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
-
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...
-
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...
-
C++ Default Function
What are the four functions that compiler automatically provides? How can you prevent compiler to provide automatically?
-
C++ Interface
Is it possible to create an interface in C++? If Yes, how?
-
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.
C++ Interview Questions
Ans