[GiNaC-list] Goncharov polylog. leads to Segmentation Fault

[Alexander Hasselhuhn]

It works, thanks a lot!

Yours,
Alex

On 07/24/2015 08:54 PM, Richard B. Kreckel wrote:
> Hi Alexander,
>
> On 07/23/2015 01:27 PM, Alexander Hasselhuhn wrote:
>> when trying to evaluate G(I,sqrt(2)) I get "Segmentation fault", both in
>> ginsh as well as in a program:
>> --- begin code ---
>> #include <ginac/ginac.h>
>> using namespace GiNaC;
>> int main () {
>>          ex two = 2;
>>          ex res = G (lst (I), sqrt(two));
>>          return 0;
>> }
>> --- end code ---
>>
>> Not sure whether this is a different issue, but if instead use try to
>> evaluate G(I,1/sqrt(2)), I get the error-message from cln:
>> --- begin output ---
>> terminate called after throwing an instance of 'cln::notreached_exception'
>>    what():  Internal error: statement in file float/conv/cl_F_from_RA.cc,
>> line 27 has been reached!!
>> Please send the authors of the program a description how you produced
>> this error!
>> Aborted
>> --- end output ---
>>
>> I'm using GiNaC v1.6.4 with cln v1.3.3 on OpenSuse 13.2. I compiled
>> GiNaC with gcc v4.8.3.
>> Does this happen on other machines also?
> Indeed, there was a bug in GiNaC. A patch that fixes it was provided by
> Stefan Weinzierl and applied to the repository.
>
> Could you, please, check it out from git and confirm that it works for
> your cases?
>
>     -richard.