Problem with passing pointer to a function

[Than]

I'm having this kind of problem.

I've got a function which get's as the argument a pointer to an object. It
looks like this:

void DoCalculations(CMyClass* Class);
{
CMyClass temporaryClass = *Class;
return;
}

And when the function ends with return; in place from where it was called:

DoCalculations (&ExampleClass);

object ExampleClass has totally different fields' values, random i suppose.
What do i do wrong?

Operator
CMyClass& operator=(CMyClass& class);
is defined for the class.

Thanks for any help
Than

[Victor Bazarov]

"Than" <th**@gazeta.pl> wrote...

I'm having this kind of problem.

I've got a function which get's as the argument a pointer to an object. It
looks like this:

void DoCalculations(CMyClass* Class);
{
CMyClass temporaryClass = *Class;
return;
}

And when the function ends with return; in place from where it was called:

DoCalculations (&ExampleClass);

object ExampleClass has totally different fields' values, random i suppose. What do i do wrong?

Operator
CMyClass& operator=(CMyClass& class);
is defined for the class.

That shouldn't matter. Do you have a copy-constructor defined?
It is most likely that you have some kind of dynamic memory used
in 'CMyClass' and you have forgotten to define a copy-constructor
or it is defined incorrectly. Read about "the Rule of Three".

Victor