Passing variables by pointer

[meisammhq]

Is passing a variable or array to a function by pointer more convenient than passing it by value.On the other hand,does the c++ allocate a new space when you pass things by value? and is it worth burdening with dealing with pointers?
Thanks in advance

[Bazzy]

If you have an object which complex to copy, you should pass it by reference, not by pointer.
eg:

class myClass
{
    // many things in here
};

void function ( const myClass &param ); // passing as const reference so you don't copy it and you can't modify it 

For basic types as int, double etc. you can always pass by value

[meisammhq]

Thanks so much .That was a stunning idea. ;)