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From 3edb98db78dd49bb8b4137b46781a7cd570c2556 Mon Sep 17 00:00:00 2001
From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
Date: Sun, 28 Mar 2021 13:27:24 +0200
Subject: [PATCH] rnfdisc_factored: remove spurious Q_primpart [#2284]

diff --git a/src/basemath/base2.c b/src/basemath/base2.c
index b2b63ada5..531f5c558 100644
--- a/src/basemath/base2.c
+++ b/src/basemath/base2.c
@@ -3582,7 +3582,7 @@ rnfdisc_factored(GEN nf, GEN pol, GEN *pd)
 
   nf = checknf(nf);
   pol = rnfdisc_get_T(nf, pol, &lim);
-  disc = nf_to_scalar_or_basis(nf, nfX_disc(nf, Q_primpart(pol)));
+  disc = nf_to_scalar_or_basis(nf, nfX_disc(nf, pol));
   pol = nfX_to_monic(nf, pol, NULL);
   fa = idealfactor_partial(nf, disc, lim);
   P = gel(fa,1); l = lg(P);
diff --git a/src/test/32/rnf b/src/test/32/rnf
index 6bd4585..d24e1ce 100644 (file)
--- a/src/test/32/rnf
+++ b/src/test/32/rnf
@@ -832,9 +832,9 @@ error("inconsistent dimensions in idealtwoelt.")
 0
 0
 1
-[[7361, 3786, 318, 5823; 0, 1, 0, 0; 0, 0, 1, 0; 0, 0, 0, 1], [-3, 6, -2, 0]
-~]
-[2, -1]
+[[433, 322, 318, 1318/17; 0, 1, 0, 12/17; 0, 0, 1, 5/17; 0, 0, 0, 1/17], [25
+/17, -12/17, 12/17, 16/17]~]
+[1, -1]
   ***   at top-level: rnfdedekind(nf,P,pr2,1)
   ***                 ^-----------------------
   *** rnfdedekind: sorry, Dedekind in the difficult case is not yet implemented.