Hi, I have program that crashes when it uses the collect function of the ex class. The strange error I receive is: Not a 32-bit integer: -9223372028264841216 I am able to print both the expression and the symbol I am going to use for the collect call before hand and all seems fine. I archived the symbol and expression just before I knew it would crash and I can look at the function with viewgar. However if I make a program that uses collect on the expression I get the same strange error and the program exits. Is this a bug in GiNaC? Is it a bug in my software? What could be causing this? How can I fix it? I have attached the archive file and the source to the program that reads the archive file. I did not give the source to the software that originally produced it because it is a function that is dynamically linked with another program.(GNU Octave) In case my system configuration is important: [ben@pcben Linux]$ ginac-config --version 0.6.4 [ben@pcben Linux]$ g++ -v Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/specs gcc version 2.95.2 19991024 (release) [ben@pcben Linux]$ uname -a Linux pcben 2.2.12-20 #1 Mon Sep 27 10:40:35 EDT 1999 i686 unknown Thanks for any insight. -- Ben Sapp Los Alamos National Laboratory email: <mailto:bsapp@lanl.gov> Phone: (505)667-3277 Fax: (505)665-7920 URL: http://www.neutrino.lanl.gov/ -- GARCclasssymbolnamexThe symbolmuladdrestnumericnumber1coeffR-1 11529215046068469760 -61overall_coeffpowerbasisR1 9223372036854775808 -62exponentR1 13835058055282163712 -62The expression J J ;[kJ{<J;[k;[; [k #include <ginac/ginac.h> #include <iostream> #include <fstream> using namespace GiNaC; int main() { archive a; ifstream in("foobar.gar"); in >> a; symbol x("x"); lst syms(x); ex expr = a.unarchive_ex(syms,"The expression"); cout << "expr = " << expr << endl; cout << expr.collect(x); return(0); }