nobu	2012-08-22 01:49:00 +0900 (Wed, 22 Aug 2012)

  New Revision: 36764

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=36764

  Log:
    bignum.c: keep first zero
    
    * bignum.c (bigdivrem): keep first digit even if zero.

  Modified files:
    trunk/bignum.c

Index: bignum.c
===================================================================
--- bignum.c	(revision 36763)
+++ bignum.c	(revision 36764)
@@ -2812,7 +2812,7 @@
     if (modp) {			/* normalize remainder */
 	*modp = zz = rb_big_clone(z);
 	zds = BDIGITS(zz);
-	while (ny > 0 && !zds[ny-1]) --ny;
+	while (ny > 1 && !zds[ny-1]) --ny;
 	if (dd) {
 	    t2 = 0; i = ny;
 	    while(i--) {

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