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| author | Mark Dickinson <mdickinson@enthought.com> | 2012-01-27 21:16:01 +0000 |
|---|---|---|
| committer | Mark Dickinson <mdickinson@enthought.com> | 2012-01-27 21:16:01 +0000 |
| commit | 1abe6cd84245322883982cb7c5e3f9d754ea3171 (patch) | |
| tree | 251ee9044f6728b68dfb73309fc942739cf151c3 | |
| parent | 7a556846d40021de1102852b9fedc5e1ca808de9 (diff) | |
| download | cpython-git-1abe6cd84245322883982cb7c5e3f9d754ea3171.tar.gz | |
Issue #13889: Add missing _Py_SET_53BIT_PRECISION_* calls around uses of dtoa.c functions in float round.
| -rw-r--r-- | Objects/floatobject.c | 5 |
1 files changed, 5 insertions, 0 deletions
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"); |