streambuf header

From Cppwiki

streambuf is a C++ Standard Library #include. It is responsible for defining std::basic_streambuf.

Types defined by <streambuf>

 std::basic_streambuf - Abstract base class for stream buffer types.

Typedefs defined by <streambuf>

 typedef std::basic_streambuf<char> streambuf;
 typedef std::basic_streambuf<wchar_t> wstreambuf;