std::basic_streambuf<CharT,Traits>::basic_streambuf
protected: basic_streambuf(); |
(1) | |
protected: basic_streambuf(const basic_streambuf& rhs); |
(2) | (since C++11) |
1) 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.
Parameters
| rhs | - | a streambuf object to copy |
Notes
Until 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.
Example
See also
| constructs a basic_filebuf object (public member function of std::basic_filebuf<CharT,Traits>) |
|
| constructs a basic_stringbuf object (public member function of std::basic_stringbuf<CharT,Traits,Allocator>) |
|
| constructs a strstreambuf object (public member function of std::strstreambuf) |
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