[Python-checkins] r77714 - python/trunk/Python/dtoa.c

[mark.dickinson]

Author: mark.dickinson
Date: Sat Jan 23 22:25:53 2010
New Revision: 77714

Log:
dtoa.c fix from upstream that fixes incorrectly rounded results for certain subnormals that are also halfway cases.

Modified:
   python/trunk/Python/dtoa.c

Modified: python/trunk/Python/dtoa.c
==============================================================================
--- python/trunk/Python/dtoa.c	(original)
+++ python/trunk/Python/dtoa.c	Sat Jan 23 22:25:53 2010
@@ -2084,9 +2084,9 @@
             if (!odd)
                 break;
             if (dsign)
-                dval(&rv) += ulp(&rv);
+                dval(&rv) += sulp(&rv, &bc);
             else {
-                dval(&rv) -= ulp(&rv);
+                dval(&rv) -= sulp(&rv, &bc);
                 if (!dval(&rv)) {
                     if (bc.nd >nd)
                         break;