Another temporary fix is to add a rule in 'resolveTTSpecial'. We resolve these 2 types manually, but the automatic coercion will fail later, at least stack overflow is gone.
diff --git a/src/interp/i-resolv.boot b/src/interp/i-resolv.boot index dbe3a228..fc150670 100644 --- a/src/interp/i-resolv.boot +++ b/src/interp/i-resolv.boot @@ -271,6 +271,9 @@ resolveTTSpecial(t1,t2) == t1 is ['Polynomial,R] and t2 is ['Complex,S] => containsPolynomial(S) => resolveTT1(['Polynomial,['Complex,R]],t2) ['Polynomial,['Complex,resolveTT1(R,S)]] + t1 is '(Expression (Complex (Integer))) and + t2 is '(Fraction (Polynomial (AlgebraicNumber))) => + t1 t1 is ['Expression, R] and t2 is ['Complex,S] => dom' := resolveTT(R, t2) null dom' => nil On Mon, Feb 19, 2018 at 11:46 PM, Waldek Hebisch <hebi...@math.uni.wroc.pl> wrote: > oldk1331 wrote: >> >> Still, this is a bug that should be fixed. >> >> A minimal example to reproduce this bug would be: >> >> 2^(1/2)/x/(%i)^(1/2) >> >> This bug happens during type resolution between >> Fraction(Polynomial(AlgebraicNumber)) and >> Expression(Complex(Integer)) >> >> I'll try to fix this bug. > > We get infinite recursion where each step separately > is resonable. AFAICS proper fix will require substantial > effort (significant changes to typechecker) and it will > take long time. For now we can try lessen the impact > by limiting depth of recursion. I will try to find > resonable limit. > > -- > Waldek Hebisch > > -- > You received this message because you are subscribed to the Google Groups > "FriCAS - computer algebra system" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to fricas-devel+unsubscr...@googlegroups.com. > To post to this group, send email to fricas-devel@googlegroups.com. > Visit this group at https://groups.google.com/group/fricas-devel. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To post to this group, send email to fricas-devel@googlegroups.com. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.