Modified interface to _Py_[String|Unicode]InsertThousandsGrouping, in anticipation of fixing issue 3140.
diff --git a/Python/pystrtod.c b/Python/pystrtod.c
index 3f0328e..01c1c42 100644
--- a/Python/pystrtod.c
+++ b/Python/pystrtod.c
@@ -364,7 +364,7 @@
/* At this point, p points just past the right-most character we
want to format. We need to add the grouping string for the
characters between buffer and p. */
- return _PyString_InsertThousandsGrouping(buffer, len, p,
+ return _PyString_InsertThousandsGrouping(buffer, len, p-buffer,
buf_size, NULL, 1);
}