From: Mark Dickinson <mdickinson@enthought.com>
Date: Fri, 27 Jan 2012 21:16:01 +0000 (+0000)
Subject: Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c funct... 
X-Git-Tag: v3.2.3rc1~115
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=261896b5591e819fe9c874e69469783c16161586;p=thirdparty%2FPython%2Fcpython.git

Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c functions in float round.
---

diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 09c0e961ba54..e146a4fc7c7e 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -919,9 +919,12 @@ double_round(double x, int ndigits) {
     char *buf, *buf_end, shortbuf[100], *mybuf=shortbuf;
     int decpt, sign;
     PyObject *result = NULL;
+    _Py_SET_53BIT_PRECISION_HEADER;
 
     /* round to a decimal string */
+    _Py_SET_53BIT_PRECISION_START;
     buf = _Py_dg_dtoa(x, 3, ndigits, &decpt, &sign, &buf_end);
+    _Py_SET_53BIT_PRECISION_END;
     if (buf == NULL) {
         PyErr_NoMemory();
         return NULL;
@@ -944,7 +947,9 @@ double_round(double x, int ndigits) {
 
     /* and convert the resulting string back to a double */
     errno = 0;
+    _Py_SET_53BIT_PRECISION_START;
     rounded = _Py_dg_strtod(mybuf, NULL);
+    _Py_SET_53BIT_PRECISION_END;
     if (errno == ERANGE && fabs(rounded) >= 1.)
         PyErr_SetString(PyExc_OverflowError,
                         "rounded value too large to represent");