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-rw-r--r--libcxx/include/numeric15
1 files changed, 9 insertions, 6 deletions
diff --git a/libcxx/include/numeric b/libcxx/include/numeric
index 5c10dd3c1e67..ed06fcc49d5b 100644
--- a/libcxx/include/numeric
+++ b/libcxx/include/numeric
@@ -335,14 +335,17 @@ exclusive_scan(_InputIterator __first, _InputIterator __last,
{
if (__first != __last)
{
- _Tp __saved = __init;
- do
+ _Tp __tmp(__b(__init, *__first));
+ while (true)
{
- __init = __b(__init, *__first);
- *__result = __saved;
- __saved = __init;
+ *__result = _VSTD::move(__init);
++__result;
- } while (++__first != __last);
+ ++__first;
+ if (__first == __last)
+ break;
+ __init = _VSTD::move(__tmp);
+ __tmp = __b(__init, *__first);
+ }
}
return __result;
}