In C++ compiler providing the default copy constructor ,then why do we need copy constructor

[ranjithsubra]

Hello, Could you please provide some examples "

In C++ compiler providing the default copy constructor ,then why do we need copy constructor

. " Thanks and Regards, Ranjithkumar.S

ranjith

[Lost User]

When you want something other than the default behavior.

[ranjithsubra]

provide some example

ranjith

[Lost User]

If this was a write code to order service, what sort of an example would I write for you? But since this is not a coding service, no, I won't do your homework for you.

[ranjithsubra]

thank you

ranjith

[David Crow]

Copy constructors - cppreference.com[^] Default Copy Constructor - C++ Forum[^]

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[jeron1]

There are tons of examples out there, here is but one[^].

"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

[Lost User]

Basically when you need custom logic in copying. For example, dynamic memory allocation in pointer members. Same thing is applicable in assignment operator overloading too.

[Saravanan Sundaresan]

May be it is orthogonal information, If we want to hide/restrict usage of default copy constructor, we need to provide override declaration in private section of class, and no definition for that. This ensures preventing usages of copy constructor