https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
--- Comment #2 from Romain <romain.wallon at orange dot fr> --- Created attachment 33807 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33807&action=edit A test for the bug about linked list Here is an example of the problem I have encoutered. It is unfortunately written in french (comments, name of variables), I am sorry. I hope it would be helpfull. Here is the result I had : Please, enter a monome (for example x) : x Address of the first element : 0x0 Your polynom : 0 Note 1 : The linked list is used here to represent polynoms. The program itself is not yet finished, but it works for monoms. Note 2 : The program works normally on Ubuntu