protected:
basic_streambuf();
protected:
basic_streambuf(const basic_streambuf& rhs);
Constructs the
basic_streambuf
object, initializes the six pointer members (
eback()
,
gptr()
,
egptr()
,
pbase()
,
pptr()
, and
epptr()
) to null pointer values, and the locale member to
std::locale(), a copy of the global C++ locale at the time of construction.
2) Constructs a copy of rhs, initializing the six pointers and the locale object with the copies of the values held by rhs. Note that this is a shallow copy: the pointers of the newly-constructed basic_streambuf are pointing into the same character array as the pointers of rhs.
Both constructors are protected, and are only called by the concrete streambuf classes, such as std::basic_filebuf, std::basic_stringbuf, or std::strstreambuf.
[edit] Parameters rhs - a streambuf object to copy [edit] NotesUntil C++11, it was unspecified whether basic_streambuf or any of its derived classes is CopyConstructible (LWG issue 421), and different C++ library implementations provided different options.
basic_filebuf object
std::basic_filebuf<CharT,Traits>) [edit] constructs a basic_stringbuf object
std::basic_stringbuf<CharT,Traits,Allocator>) [edit] constructs a strstreambuf object
std::strstreambuf) [edit]
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