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C++ Library - <wstreambuf>
Introduction
It is a ase buffer class for streams (wide).
Definition
Below is definition of std::wstreambuf.
typedef basic_streambuf<wchar_t> wstreambuf;
Parameters
charT − Character type.
traits − Character traits class that defines essential properties of the characters used by stream objects.
Public member functions inherited from basic_streambuf
| Sr.No. | Locales & Definition |
|---|---|
| 1 | event Type to indicate event type |
| 2 | event_callback Event callback function type |
Public Member Functions
| Sr.No. | Member types & Definition |
|---|---|
| 1 | pubimbue It is an imbue locale |
| 2 | getloc It is used to get current locale |
Buffer management and positioning
| Sr.No. | Buffer management and positioning & Definition |
|---|---|
| 1 | pubsetbuf It is used to set buffer array |
| 2 | pubseekoff It is used to set internal position pointer to relative position |
| 3 | pubseekpos It is used to set internal position pointer to absolute position |
| 4 | pubsync It is used to synchronize stream buffer |
Input functions
| Sr.No. | Input functions & Definition |
|---|---|
| 1 | in_avail It is used to get number of character available to read |
| 2 | snextc It is used to advance to next position and get character |
| 3 | sbumpc It is used to get current character and advance to next position |
| 4 | sgetc It is used to get current character |
| 5 | sgetn It is used to get sequence of characters |
| 6 | sputbackc It is used to put character back |
| 7 | sungetcIt is used to decrease current position |
Output functions
| Sr.No. | Output & Definition |
|---|---|
| 1 | sputc It is used to put character and advance to next position |
| 2 | sputn It is used to put sequence of characters |
Protected virtual function overrides
| Sr.No. | virtual function & Definition |
|---|---|
| 1 | setbuf It is used to set buffer |
| 2 | seekoff It is used to set position pointer to relative position |
| 3 | seekpos It is used to set position pointer to absolute position |
| 4 | underflow It is used to get character |
| 5 | pbackfail It is used to put character back |
| 6 | overflow It is used to put character |
Protected member functions
The following protected member functions provide access to these pointers −
Input sequence
| Sr.No. | Input sequence & Definition |
|---|---|
| 1 | eback It is used in pointer to beginning of input sequence |
| 2 | gptr It is used in pointer to current position of input sequence |
| 3 | egptr It is used in pointer to end of input sequence |
| 4 | gbump It is used to get pointer |
| 5 | setg It is used to set input sequence pointers |
Output sequence (put)
| Sr.No. | Output sequence & Definition |
|---|---|
| 1 | pbase It is used in pointer to beginning of output sequence |
| 2 | pptr It is used in pointer to current position of output sequence |
| 3 | epptr It is used in pointer to end of output sequence |
| 4 | pbump It is used to increase put pointer |
| 5 | setp It is used to set output sequence pointers |