Don't neglect to "return *this". git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@165860 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/chrono b/include/chrono index 3900d59..508c1f3 100644 --- a/include/chrono +++ b/include/chrono
@@ -728,8 +728,8 @@ // arithmetic - _LIBCPP_INLINE_VISIBILITY time_point& operator+=(const duration& __d) {__d_ += __d;} - _LIBCPP_INLINE_VISIBILITY time_point& operator-=(const duration& __d) {__d_ -= __d;} + _LIBCPP_INLINE_VISIBILITY time_point& operator+=(const duration& __d) {__d_ += __d; return *this;} + _LIBCPP_INLINE_VISIBILITY time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;} // special values 