Deep Copy : C++

[D-Mon]

Hello, I am the student of the Msc-CS of first year. I have the knowledge of the C++ language. but I do not know anything about the Deep Copy. And also I have to submit the project on the Deep Copy in College. So, I want to know about the Deep Copy in C++. I also want to know about how I am able to use Deep Copy in the C++ program. If anyone has the answer on Deep Copy then reply me. I am waiting for your answer, Please!!

[Praetor]

Hi, I think the Deep Copy can copy all of the fields and then can makes copy of the dynamically allocating block of memory that can be pointed to by the fields. The assignment operator and the Copy Constructor can have to be overwritten, if you can want to perform the Deep Copy in C++ language. In case of the Deep Copy, data that can be copied and the original data can allocate different portions for two copies. You must have to use the Copy Constructor to perform the Deep Copy.

[Katty]

Hello, A Deep Copy can duplicates the variable or object that can be pointed to so that destinations own copy that is being local for it can be received by the destination. In this manner, the object and the local copy that can be copied from could not be affected even if the destination could do whatever it wants to it’s the object and the local copy. For performing the Deep Copy can requires that you have to write your own assignment operators that can be overloaded and the copy constructors.

[kelfro]

According to my knowledge about the Deep Copy is that A class that can requires deep copies could basically need the following :
a) To make a copy of the allocated memory that can be dynamically allocated, a copy constructor must required.
b) To make a copy of the allocated memory that can be dynamically allocated, aAn overloaded assignment operator can be required.
c) To delete the allocated memory that can be dynamically allocated, a destructor can be required.

[Zecho]

The following code of lines can demonstrates you about the Deep Copy. I suggest you to go through very carefully :

ABC::ABC(const ABC& cSrc)
{
mLngt = cSrc.mnLngt;
if (cSrc.mpchStrng)
{
mpchStrng = new char[mnLngt];
strncpy(mpchStrng, cSrc.mpchStrng, mnLngt);
}
else
mpchStrng = 0;
}

I hope you should understood from the above.