Chris Wolf <[email protected]> wrote:
> It depends on your definition of "object". I hate to nit-pick, but for
> me, "object" may
> contain data or code or both data and code. So with this definition, C
> implements objects
> without code.
Is there really a fundamental difference between
struct X {
int data;
void DoSomething();
};
X x;
x.DoSomething();
and
struct X {
int data;
};
void X_DoSomething(X* pThis);
X x;
X_DoSomething(&x);
I bet both fragmens would produce nearly identical machine code. In this very
simple case, even syntactical sugar sprinkled over the first fragment doesn't
seem to make a huge difference. Of course, once you get into virtual functions
and multiple inheritance and so on, simulating equivalent behavior in C gets
progressively more unwieldly (but still possible: in fact, compilers exist that
take C++ code and produce equivalent C code).
--
Igor Tandetnik
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