[PD] C++ for reusable dsp lib - or better use C?

[Mathieu Bouchard]

Le 2012-03-04 à 03:10:00, Billy Stiltner a écrit :

> What we need is flat address space without the overhead of GDS segment 
> sorcery.

What's GDS ? Is that a Windows-only thing ?

> It's pretty bad to be able to delete a  list of a list of pointers to 
> objects that deletes itself before it deletes itself in a polymorphic 
> virtual destructor. ;)

Any language with sufficient power will have to allow the user to screw 
up. C gives you the power to decide of your own allocation duration (after 
malloc, how long before you free). But C also gives you the power to write 
your own automatic-free, or use someone else's. C++ makes it easier in 
some ways (ref-counting can become almost completely implicit).

> C++ is great but it is much easier to keep up with pointers in c.

Please don't make it look like you didn't try C++ ;) In C++ you have a 
larger number of constructs you can use ; in C you have to reuse the same 
constructs in more different ways before you can get to the same solution. 
Any C++ programme could have been written using C by the means of more 
funny tricks and longer, more redundant code. The length and redundancy is 
sometimes all it takes to make bugs harder to find.

> c is just like c++ without the confusion you can work yourself into a 
> pointer to a function is a pointer to a function

I can't parse your sentence... sorry

> and if yo look at the assembly language there aint nothing wrong with 
> using struct instead of class.

In C++, struct and class are near-synonymous. All the OOP features are 
available with the struct keyword. In fact, you never need the class 
keyword, if you don't want it to appear in your source code.

> it's all code an data when its running.

Even when not running, if you ask me...

> the differences in the output are going to be more than likely caused by 
> leaky capacitors and noisy fans or  2 coils of wire too close together.

The differences in the output between asm, C and C++ is more likely going 
to be about which categories of bugs, in which amounts, will be found 
between the chair and the keyboard.

And I'm not talking about Cimex Lectularius.

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| Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC