From: Mark Dickinson <dickinsm@gmail.com>
Date: Wed, 7 Oct 2009 19:23:50 +0000 (+0000)
Subject: Merged revisions 75275 via svnmerge from
X-Git-Tag: v3.2a1~2439
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=56df887b6c1c498af7b5decb3e069c111e4fb520;p=python

Merged revisions 75275 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75275 | mark.dickinson | 2009-10-07 20:22:05 +0100 (Wed, 07 Oct 2009) | 6 lines

  Issue #7048: logb should round its result when that result doesn't fit
  into the available precision.  (Tests for this change are included in
  the most recent set of testcases from the Decimal Specification site;
  those testcases will be updated shortly.)
........
---

diff --git a/Lib/decimal.py b/Lib/decimal.py
index 33f539178b..5045722f5b 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -3209,7 +3209,8 @@ class Decimal(object):
         # otherwise, simply return the adjusted exponent of self, as a
         # Decimal.  Note that no attempt is made to fit the result
         # into the current context.
-        return Decimal(self.adjusted())
+        ans = Decimal(self.adjusted())
+        return ans._fix(context)
 
     def _islogical(self):
         """Return True if self is a logical operand.
diff --git a/Misc/NEWS b/Misc/NEWS
index 3937389a49..42c7454bf5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -87,6 +87,9 @@ C-API
 Library
 -------
 
+- Issue #7048: Force Decimal.logb to round its result when that result
+  is too large to fit in the current precision.
+
 - Issue #6236, #6348: Fix various failures in the I/O library under AIX
   and other platforms, when using a non-gcc compiler. Patch by egreen.