C++:strstream
삭제 예정이다. 따라서 #include<sstream>의 std::stringstream을 사용해야 한다.
Deprecated warning
만약 사용할 경우 아래와 같은 경고 메시지가 출력된다.
#warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date.
Please use a non-deprecated interface with equivalent functionality instead.
For a listing of replacement headers and interfaces, consult the file backward_warning.h.
To disable this warning use -Wno-deprecated. [-Wcpp]