http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48011
janus at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE --- Comment #3 from janus at gcc dot gnu.org 2011-03-07 08:39:23 UTC --- (In reply to comment #1) > This looks like a duplicate of pr46262 (cc Janus). Yes, it is in fact a duplicate of this PR. It is even derived from the same code. The problem is this line: model = model + d_dt(model)*dt ! Explicit Euler formula "+" and "*" here are user-defined polymorphic operators, and "d_dt" has a polymorphic result. For properly generating the type-bound calls to the two operators, we need to insert temporaries for the passed objects. This does not work currently. *** This bug has been marked as a duplicate of bug 46262 ***