Re: [PD-dev] how to dinamically allocate t_atom & t_float size?

I'm using getbytes and freebytes for now, any disadvantages over alloca?

thanks!

Em qui., 3 de dez. de 2020 às 20:59, David Rush kumoyuki@gmail.com escreveu:

On Thu, 3 Dec 2020 at 23:15, Alexandre Torres Porres porres@gmail.com wrote:

...

Hi, when compiling ELSE for camomille in windows, me and Esteban are getting some errors. Offending pieces of code are when trying to do things like

t_atom at[ac];

If you want to maintain straight C compiler compatibility

    t_atom* at = (t_atom*)malloc(ac * sizeof(t_atom));

but you have to remember to free(at), &cet. You can avoid the free() if you HAVE_ALLOCA with

    t_atom* at = (t_atom*)alloca(ac * sizeof(t_atom));

if you want to do it the C++ way without a std::vector<t_atom>

    t_atom* at = new t_atom[ac];

but again you will have to

    delete at;

For my own externals, I write them all in C++ and use STL. Making the change from the C-world allocation of PD to the C++ world is not so hard, but it does involve a tiny bit of trickery which I only justify through expediency.

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