cleanup: Big pile of whitespace fixes, all at once.

[u/mdw/catacomb] / mp-gcd.c

diff --git a/mp-gcd.c b/mp-gcd.c
index 5312400..2583c8e 100644 (file)
--- a/mp-gcd.c
+++ b/mp-gcd.c
@@ -7,7 +7,7 @@
  * (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,
@@ -118,19 +118,19 @@ void mp_gcd(mp **gcd, mp **xx, mp **yy, mp *a, mp *b)
     return;
   }
 
-  /* --- Take a reference to the arguments --- */
+  /* --- Force the signs on the arguments and take copies --- */
 
   a = MP_COPY(a);
   b = MP_COPY(b);
 
-  /* --- Make sure @a@ and @b@ are not both even --- */
-
   MP_SPLIT(a); a->f &= ~MP_NEG;
   MP_SPLIT(b); b->f &= ~MP_NEG;
 
   u = MP_COPY(a);
   v = MP_COPY(b);
 
+  /* --- Main extended Euclidean algorithm --- */
+
   while (!MP_ZEROP(v)) {
     mp *t;
     mp_div(&q, &u, u, v);
@@ -264,15 +264,15 @@ static int modinv(dstr *v)
   mp *y = mp_modinv(MP_NEW, x, m);
   if (!MP_EQ(y, r)) {
     fputs("\n*** mp_modinv failed", stderr);
-    fputs("\nx      = ", stderr); mp_writefile(x, stderr, 10);
-    fputs("\nm      = ", stderr); mp_writefile(m, stderr, 10);
+    fputs("\nx     = ", stderr); mp_writefile(x, stderr, 10);
+    fputs("\nm     = ", stderr); mp_writefile(m, stderr, 10);
     fputs("\nexpect = ", stderr); mp_writefile(r, stderr, 10);
     fputs("\nresult = ", stderr); mp_writefile(y, stderr, 10);
     ok = 0;
   }
   MP_DROP(x); MP_DROP(m); MP_DROP(r); MP_DROP(y);
   assert(mparena_count(MPARENA_GLOBAL) == 0);
-  return (ok);  
+  return (ok);
 }
 
 static int gcd(dstr *v)
@@ -288,8 +288,8 @@ static int gcd(dstr *v)
   mp_gcd(&gg, &xx, &yy, a, b);
   if (!MP_EQ(x, xx)) {
     fputs("\n*** mp_gcd(x) failed", stderr);
-    fputs("\na      = ", stderr); mp_writefile(a, stderr, 10);
-    fputs("\nb      = ", stderr); mp_writefile(b, stderr, 10);
+    fputs("\na     = ", stderr); mp_writefile(a, stderr, 10);
+    fputs("\nb     = ", stderr); mp_writefile(b, stderr, 10);
     fputs("\nexpect = ", stderr); mp_writefile(x, stderr, 10);
     fputs("\nresult = ", stderr); mp_writefile(xx, stderr, 10);
     fputc('\n', stderr);
@@ -297,8 +297,8 @@ static int gcd(dstr *v)
   }
   if (!MP_EQ(y, yy)) {
     fputs("\n*** mp_gcd(y) failed", stderr);
-    fputs("\na      = ", stderr); mp_writefile(a, stderr, 10);
-    fputs("\nb      = ", stderr); mp_writefile(b, stderr, 10);
+    fputs("\na     = ", stderr); mp_writefile(a, stderr, 10);
+    fputs("\nb     = ", stderr); mp_writefile(b, stderr, 10);
     fputs("\nexpect = ", stderr); mp_writefile(y, stderr, 10);
     fputs("\nresult = ", stderr); mp_writefile(yy, stderr, 10);
     fputc('\n', stderr);
@@ -317,8 +317,8 @@ static int gcd(dstr *v)
 
   if (!MP_EQ(g, gg)) {
     fputs("\n*** mp_gcd(gcd) failed", stderr);
-    fputs("\na      = ", stderr); mp_writefile(a, stderr, 10);
-    fputs("\nb      = ", stderr); mp_writefile(b, stderr, 10);
+    fputs("\na     = ", stderr); mp_writefile(a, stderr, 10);
+    fputs("\nb     = ", stderr); mp_writefile(b, stderr, 10);
     fputs("\nexpect = ", stderr); mp_writefile(g, stderr, 10);
     fputs("\nresult = ", stderr); mp_writefile(gg, stderr, 10);
     fputc('\n', stderr);