From de8ca8a1389093bda27836b16bd1e18a19339887 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 20 Jun 2013 21:45:11 +0000
Subject: [PATCH] * bignum.c (rb_ull2big): Refactored.   (rb_uint2big): Useless
 code removed.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41505 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog |  5 +++++
 bignum.c  | 22 +++++++++++-----------
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a5eccc49e6..9e761d93bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jun 21 06:43:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_ull2big): Refactored.
+	  (rb_uint2big): Useless code removed.
+
 Fri Jun 21 05:37:39 2013  Koichi Sasada  <ko1@atdot.net>
 
 	* gc.c (gc_prof_sweep_timer_stop): accumulate sweep time only when
diff --git a/bignum.c b/bignum.c
index c17bcda483..1c2b8dc999 100644
--- a/bignum.c
+++ b/bignum.c
@@ -345,7 +345,6 @@ rb_uint2big(VALUE n)
 #if SIZEOF_BDIGITS >= SIZEOF_VALUE
     digits[0] = n;
 #else
-    i = 0;
     for (i = 0; i < bdigit_roomof(SIZEOF_VALUE); i++) {
 	digits[i] = BIGLO(n);
 	n = BIGDN(n);
@@ -1830,19 +1829,20 @@ rb_str_to_inum(VALUE str, int base, int badcheck)
 static VALUE
 rb_ull2big(unsigned LONG_LONG n)
 {
-    BDIGIT_DBL num = n;
-    long i = 0;
-    BDIGIT *digits;
-    VALUE big;
+    long i;
+    VALUE big = bignew(DIGSPERLL, bdigit_roomof(SIZEOF_LONG_LONG));
+    BDIGIT *digits = BDIGITS(big);
 
-    big = bignew(DIGSPERLL, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLL) {
-	digits[i++] = BIGLO(num);
-	num = BIGDN(num);
+#if SIZEOF_BDIGITS >= SIZEOF_LONG_LONG
+    digits[0] = n;
+#else
+    for (i = 0; i < bdigit_roomof(SIZEOF_LONG_LONG); i++) {
+	digits[i] = BIGLO(n);
+	n = BIGDN(n);
     }
+#endif
 
-    i = DIGSPERLL;
+    i = bdigit_roomof(SIZEOF_LONG_LONG);
     while (i-- && !digits[i]) ;
     RBIGNUM_SET_LEN(big, i+1);
     return big;