C and C++ pointers

[Jasper]

Is there any difference btwn C and C++ pointers?Can someone explain to me the use of new and delete operators in C++?Thkx.

[Cactus_Hugger]

Not much difference. They are a variable that holds a memory address. It might be noted that changing the type of a pointer from a derived class to a base class in some cases may also change the value of the pointer (in the case of multiple base classes, for example) -- this is transparent to you as a programmer 99% of the time.

new allocates memory. delete frees it. Example:

std::string *s;
s = new std::string();
// use s
delete s;

s = new std::string[5]; // allocate an array of 5 strings.
// use the array
delete[] s; // You MUST pair delete[] with new[], and delete with new.

new & delete handle the calling of constructors/destructors for classes.