From: mdw <mdw>
Date: Mon, 22 Nov 1999 20:49:56 +0000 (+0000)
Subject: Fix bug which failed to favour `x' when `y' wasn't wanted and the two
X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/commitdiff_plain/da83a5610ddde70bfae47b83707f6e80bce07467

Fix bug which failed to favour `x' when `y' wasn't wanted and the two
arguments needed swapping.
---

diff --git a/mp-gcd.c b/mp-gcd.c
index 8298698..19192f5 100644
--- a/mp-gcd.c
+++ b/mp-gcd.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: mp-gcd.c,v 1.1 1999/11/17 18:02:16 mdw Exp $
+ * $Id: mp-gcd.c,v 1.2 1999/11/22 20:49:56 mdw Exp $
  *
  * Extended GCD calculation
  *
@@ -30,6 +30,10 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: mp-gcd.c,v $
+ * Revision 1.2  1999/11/22 20:49:56  mdw
+ * Fix bug which failed to favour `x' when `y' wasn't wanted and the two
+ * arguments needed swapping.
+ *
  * Revision 1.1  1999/11/17 18:02:16  mdw
  * New multiprecision integer arithmetic suite.
  *
@@ -223,6 +227,7 @@ void mp_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
   if (ext) {
     if (swap) {
       mp *t = x; x = y; y = t;
+      t = a; a = b; b = t;
     }
     if (yy) {
       if (y->f & MP_NEG) {