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PyLong_FromString(): fix Coverity CID 1424951 #4738

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Merged
merged 1 commit into from
Dec 7, 2017
Merged

PyLong_FromString(): fix Coverity CID 1424951 #4738

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5 changes: 2 additions & 3 deletions Objects/longobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2267,7 +2267,6 @@ just 1 digit at the start, so that the copying code was exercised for every
digit beyond the first.
***/
twodigits c; /* current input character */
double fsize_z;
Py_ssize_t size_z;
Py_ssize_t digits = 0;
int i;
Expand Down Expand Up @@ -2331,8 +2330,8 @@ digit beyond the first.
* need to initialize z->ob_digit -- no slot is read up before
* being stored into.
*/
fsize_z = digits * log_base_BASE[base] + 1;
if (fsize_z > MAX_LONG_DIGITS) {
double fsize_z = (double)digits * log_base_BASE[base] + 1.0;
if (fsize_z > (double)MAX_LONG_DIGITS) {
/* The same exception as in _PyLong_New(). */
PyErr_SetString(PyExc_OverflowError,
"too many digits in integer");
Expand Down