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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-06-04 09:42:25 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-06-04 09:42:25 +0000
commitd89308284195390278ccb4a2ea896b6424adc3e7 (patch)
tree844519db10afe096a013ef106599c4477a8e4ac3
parent5c11384416fb55fc2bc4ef40fb47285ba6cf1e56 (diff)
* bignum.c (bitlength_bdigit): Fix an off-by-one error.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41060 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--ChangeLog4
-rw-r--r--bignum.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 5ae31b5028..598abc7cf3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jun 4 18:41:47 2013 Tanaka Akira <akr@fsij.org>
+
+ * bignum.c (bitlength_bdigit): Fix an off-by-one error.
+
Tue Jun 4 15:30:00 2013 Kenta Murata <mrkn@cookpad.com>
* ext/bigdecimal/lib/bigdecimal/util.rb (Float#to_d): fix the number
diff --git a/bignum.c b/bignum.c
index 820eff0fb4..c197ccaca9 100644
--- a/bignum.c
+++ b/bignum.c
@@ -3193,7 +3193,7 @@ bitlength_bdigit(BDIGIT v)
v++;
if (v == 0)
return SIZEOF_BDIGITS*CHAR_BIT;
- return ffs(v); /* assumption: sizeof(BDIGIT) <= sizeof(int) */
+ return ffs(v)-1; /* assumption: sizeof(BDIGIT) <= sizeof(int) */
}
/*