[GiNaC-devel] release 1.3.6

Sheplyakov Alexei varg at theor.jinr.ru
Wed Dec 13 08:23:56 CET 2006


On Tue, Dec 12, 2006 at 09:34:57PM +0100, Richard B. Kreckel wrote:
 
> But if the extra class members are of a class that is not intended to be 
> used by any user of the library and cannot be used (at least without 
> messing around),

There is no need of "messing around". Corresponding symbols are readily
available in the shared object (since they have ELF visibility `default'
rather than `hidden' or `private'), so:

// bugme.cpp
#include <ginac/ginac.h>
namespace GiNaC {
 class lanczos_coeffs;
}

void foo() {
using namespace GiNaC;
lanczos_coeffs bugme; 
// do something here
}

BTW, people *do use* _exN stuff in their code.

> Hence, there isn't anything that can break when the library is later
> upgraded underneath applications using it.

I don't think that changing class layout for increasing precision is
a good idea anyway.

Best regards,
 Alexei

-- 
All science is either physics or stamp collecting.

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