X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/b817bfc642225b8c3c0b6a7e42d1fb949b61a606..67a452f7a9d69723741b064f08d70462bc8f00e7:/mpbarrett-mexp.c

diff --git a/mpbarrett-mexp.c b/mpbarrett-mexp.c
index 4be854d..2cfda96 100644
--- a/mpbarrett-mexp.c
+++ b/mpbarrett-mexp.c
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: mpbarrett-mexp.c,v 1.3 2004/04/08 01:36:15 mdw Exp $
+ * $Id$
  *
  * Multiple simultaneous exponentiations
  *
  * (c) 1999 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of Catacomb.
  *
@@ -15,12 +15,12 @@
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
- * 
+ *
  * Catacomb is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Library General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Library General Public
  * License along with Catacomb; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
@@ -63,10 +63,10 @@ mp *mpbarrett_mexp(mpbarrett *mb, mp *d, const mp_expfactor *f, size_t n)
   for (i = 0; i < n; i++) {
     if (f[i].exp->f & MP_BURN)
       spare = MP_NEWSEC;
-    if (!(f[i].exp->f & MP_NEG))
-      ff[i].base = MP_COPY(f[i].base);
-    else
+    if (MP_NEGP(f[i].exp))
       ff[i].base = mp_modinv(MP_NEW, f[i].base, mb->m);
+    else
+      ff[i].base = MP_COPY(f[i].base);
     ff[i].exp = f[i].exp;
   }
   mp_drop(g);
@@ -170,7 +170,7 @@ int main(int argc, char *argv[])
   sub_init();
   test_run(argc, argv, tests, SRCDIR "/tests/mpbarrett");
   return (0);
-}   
+}
 
 #endif