From 1abe6cd84245322883982cb7c5e3f9d754ea3171 Mon Sep 17 00:00:00 2001 From: Mark Dickinson Date: Fri, 27 Jan 2012 21:16:01 +0000 Subject: [PATCH] Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c functions in float round. --- Objects/floatobject.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Objects/floatobject.c b/Objects/floatobject.c index 63b7c17b6b..30f7b3489d 100644 --- a/Objects/floatobject.c +++ b/Objects/floatobject.c @@ -1086,6 +1086,7 @@ _Py_double_round(double x, int ndigits) { char *buf, *buf_end, shortbuf[100], *mybuf=shortbuf; int decpt, sign, val, halfway_case; PyObject *result = NULL; + _Py_SET_53BIT_PRECISION_HEADER; /* The basic idea is very simple: convert and round the double to a decimal string using _Py_dg_dtoa, then convert that decimal string @@ -1142,7 +1143,9 @@ _Py_double_round(double x, int ndigits) { halfway_case = 0; /* round to a decimal string; use an extra place for halfway case */ + _Py_SET_53BIT_PRECISION_START; buf = _Py_dg_dtoa(x, 3, ndigits+halfway_case, &decpt, &sign, &buf_end); + _Py_SET_53BIT_PRECISION_END; if (buf == NULL) { PyErr_NoMemory(); return NULL; @@ -1186,7 +1189,9 @@ _Py_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"); -- 2.40.0