C++ Library - <wstringbuf>
Introduction
It is a stream buffer to read from and write to wstring objects and objects of this class maintain internally a sequence of wide characters that they use as their associated input sequence and/or associated output sequence. The internal sequence can be initialized from a wstring object, or copied to one, using member str.
Definition
Below is definition of std::wstringbuf.
typedef basic_stringbuf<wchar_t> wstringbuf;
Parameters
charT − Character type.
traits − Character traits class that defines essential properties of the characters used by stream objects.
int_type − Integer Type.
Alloc − Type of the allocator object used to define the storage allocation model for the basic_string objects. By default, the allocator class template is used, which defines the simplest memory allocation model and is value-independent.
Public Member Functions
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | (constructor) | Construct object (public member function ) |
| 2 | (destructor) | Destruct object (public member function ) |
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 |
| 4 | sputbackc | It is used to put character back |
| 5 | sungetc | It 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 |
| 5 | overflow | It is used to put character |