std::basic_istream::gcount

来自cppreference.com

 
 
输入/输出库
I / O操纵
C-风格的I / O
缓冲区
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(过时了)
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Streams
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抽象
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
文件I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
字符串I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
阵列的I / O
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Array I/O
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istrstream(过时了)
ostrstream(过时了)
strstream(过时了)
类型
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Types
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streamoff
streamsize
fpos
Error类的接口
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_istream
全局对象
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Global objects
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cin
wcin
成员函数
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Member functions
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basic_istream::basic_istream
basic_istream::~basic_istream
basic_istream::operator=(C++11)
格式化的输入
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Formatted input
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basic_istream::operator>>
未格式化的输入
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Unformatted input
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basic_istream::get
basic_istream::peek
basic_istream::unget
basic_istream::putback
basic_istream::getline
basic_istream::ignore
basic_istream::read
basic_istream::readsome
basic_istream::gcount
定位
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Positioning
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basic_istream::tellg
basic_istream::seekg
杂项
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Miscellaneous
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basic_istream::sync
basic_istream::swap(C++11)
会员类别
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Member classes
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basic_istream::sentry
非成员函数
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Non-member functions
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operator>>(std::basic_istream)
 
std::streamsize gcount() const;
返回所提取的最后的未格式化的输入操作中的字符的数目.
Original:
Returns the number of characters extracted by the last unformatted input operation.
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basic_istream下面的成员函数的值更改为随后的gcount()电话
Original:
The following member functions of basic_istream change the value of subsequent gcount() calls:
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下面的函数设置gcount()为零
Original:
The following functions set gcount() to zero:
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目录

[编辑] 参数

(无)
Original:
(none)
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[编辑] 返回值

所提取的最后的未格式化的输入操作中的字符数目
Original:
number of characters extracted by the last unformatted input operation
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[编辑] 为例

[编辑] 另请参阅