From: Mark Dickinson <dickinsm@gmail.com>
Date: Sat, 23 Jan 2010 21:25:53 +0000 (+0000)
Subject: dtoa.c fix from upstream that fixes incorrectly rounded results for certain subnormal... 
X-Git-Tag: v2.7a3~98
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8cd0a66a0fd7bb7d69153906942930c2e8c3dd17;p=thirdparty%2FPython%2Fcpython.git

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

diff --git a/Python/dtoa.c b/Python/dtoa.c
index 6a93aef3bda1..4b2c6c36e31a 100644
--- a/Python/dtoa.c
+++ b/Python/dtoa.c
@@ -2084,9 +2084,9 @@ _Py_dg_strtod(const char *s00, char **se)
             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;