C++ 库 - <wstreambuf>
简介
它是流（宽）的 ase 缓冲区类。
定义
下面是 std::wstreambuf 的定义。
typedef basic_streambuf<wchar_t> wstreambuf;
参数
charT − 字符类型。
traits − 定义流对象使用的字符的基本属性的字符特征类。
从 basic_streambuf 继承的公共成员函数
| 序号 | 语言环境 & 定义 |
|---|---|
| 1 |
event
Type to indicate event type |
| 2 | event_callback
Event callback function type |
公共成员函数
| 序号 | 成员类型 & 定义 |
|---|---|
| 1 |
pubimbue
It is an imbue locale |
| 2 |
getloc
It is used to get current locale |
缓冲区管理与定位
| 序号 | 缓冲区管理与定位 & 定义 |
|---|---|
| 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 |
输入函数
| 序号 | 输入函数 & 定义 |
|---|---|
| 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 | sungetc It is used to decrease current position |
输出函数
| 序号 | Output & 定义 |
|---|---|
| 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
| 序号 | virtual function & 定义 |
|---|---|
| 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 |
受保护的成员函数
以下受保护的成员函数提供对这些指针的访问 −
输入序列
| 序号 | 输入序列 & 定义 |
|---|---|
| 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 |
输出序列（put）
| 序号 | Output sequence & 定义 |
|---|---|
| 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 |
复制
| 序号 | 复制 & 定义 |
|---|---|
| 1 |
operator=
It is used in stream buffer assignment |
| 2 |
swap
It is used in wap stream buffers |
