diff options
| -rw-r--r-- | libcxx/include/algorithm | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm index d91c57c1109..4909221bb09 100644 --- a/libcxx/include/algorithm +++ b/libcxx/include/algorithm @@ -1559,8 +1559,17 @@ typename enable_if >::type copy_n(_InputIterator __first, _Size __n, _OutputIterator __result) { - for (; __n > 0; --__n, ++__first, ++__result) + if (__n > 0) + { *__result = *__first; + ++__result; + for (--__n; __n > 0; --__n) + { + ++__first; + *__result = *__first; + ++__result; + } + } return __result; } |
