Mercurial > cpython-lru_cache-weakref
diff Objects/floatobject.c @ 74664:eaf553b063a7 2.7
Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c functions in float round.
| author | Mark Dickinson <mdickinson@enthought.com> |
|---|---|
| date | Fri, 27 Jan 2012 21:16:01 +0000 |
| parents | e1ebec2446cd |
| children | ff300ccd119d |
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--- a/Objects/floatobject.c Fri Jan 27 17:33:01 2012 +0100 +++ b/Objects/floatobject.c Fri Jan 27 21:16:01 2012 +0000 @@ -1086,6 +1086,7 @@ 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 @@ 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 @@ /* 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");