Takatoshi Kondo 70f950ac05 Fixed #806.
Removed `ss.str().data()` (the type of ss is std::stringstream).
Introduced variable that is const reference of `ss.str()`.
2019-08-29 20:22:10 +09:00
..
2018-12-20 08:16:15 +09:00
2019-08-29 20:22:10 +09:00