new and delete in c++

[dalbir4444]

Let's say I have a pointer pntr which points to an object of type Node.
i.e. Node* pntr=new Node;

The object node consists of a an int number and char *name. If I set the number=10 and name=new char[10] and then name="Hello" for the pointer pntr, and then I write delete pntr, will all the data inside the object Node get deallocated?

My main question is that will name also get deallocated?

[Bazzy]

If you are handling that in the destructor it will, otherwise it won't
You should use std::string for this sort of things, so you don't have to care about deallocating it

[rocketboy9000]

When you said Node->name=new char[10]; Node->name="Hello"; you lost your pointer to the allocated space. name="Hello"; doesn't copy "Hello" into the space you allocated, it makes name point to constant bytes 'H' 'e' 'l' 'l' 'o' '\0'.
After doing this, delete[] Node->name; will crash, trying to delete a constant in unmodifiable memory.
To copy into the space pointed by a char pointer, use strncpy from string.h:
strncpy(Node->name,"Hello",10);

[jusva2010]

When you do 'delete pntr' it will deallocate Node object but will not deallocate the name memory. you can put the 'delete name' in Node destructor.

instead of Node->name="Hello" u can use strcpy(Node->name, "Hello").

i recommend std::string

justin