std::basic_fstream::basic_fstream

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C++
 
输入/输出库
I / O操纵
C-风格的I / O
缓冲区
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf（过时了）
流
Original:
Streams
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抽象
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
文件I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
字符串I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
阵列的I / O
Original:
Array I/O
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istrstream（过时了）
ostrstream（过时了）
strstream（过时了）
类型
Original:
Types
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streamoff
streamsize
fpos
Error类的接口
Original:
Error category interface
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iostream_category（C++11）
io_errc（C++11）
 
std::basic_fstream
成员函数
Original:
Member functions
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basic_fstream::basic_fstream
basic_fstream::operator=（C++11）
basic_fstream::swap（C++11）
basic_fstream::rdbuf
文件操作
Original:
File operations
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basic_fstream::is_open
basic_fstream::open
basic_fstream::close
非成员函数
Original:
Non-member functions
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basic_fstream::swap(std::basic_fstream)（C++11）
 
basic_fstream();
 (1)
basic_fstream( const char* filename,
               ios_base::openmode mode = ios_base::in|ios_base::out );
 (2)
basic_fstream( const string& filename,
               ios_base::openmode mode = ios_base::in|ios_base::out );
 (3) （C++11 起）
basic_fstream( basic_fstream&& other );
 (4) （C++11 起）
basic_fstream( const basic_fstream& rhs) = delete;
 (5)
构建新的文件流.
Original:
Constructs new file stream.
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1)
默认的构造方法：构造一个流，不与文件关联的默认构造std::basic_filebuf和构造的基本与默认构造std::basic_filebuf成员的指针.
Original:
Default constructor: constructs a stream that is not associated with a file: default-constructs the std::basic_filebuf and constructs the base with the pointer to this default-constructed std::basic_filebuf member.
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2)
首先，作为默认的构造函数执行相同的步骤，，然后asssociate流文件的调用rdbuf()->open(filename, mode).。如果open（）调用返回一个空指针，设置setstate(failbit).
Original:
First, performs the same steps as the default constructor, then asssociate the stream with a file by calling rdbuf()->open(filename, mode).. If the open() call returns a null pointer, sets setstate(failbit).
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3)
同basic_fstream(filename.c_str(), mode).
Original:
Same as basic_fstream(filename.c_str(), mode).
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4)
移动的构造函数。首先，将构建other（不影响rdbuf()指针）的基类，然后将构建std::basic_filebuf成员，然后调用this->set_rdbuf()安装新的basic_filebufrdbuf()在基类的指针.
Original:
Move constructor. First, move-constructs the base class from other (which does not affect the rdbuf() pointer), then move-constructs the std::basic_filebuf member, then calls this->set_rdbuf() to install the new basic_filebuf as the rdbuf() pointer in the base class.
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5)
拷贝构造函数被删除：这个类是不是复制的.
Original:
The copy-constructor is deleted: this class is not copyable.
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[编辑] 参数

filename -
被打开的文件的名称
Original:
the name of the file to be opened
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mode -
指定流的开放模式。这是位掩码类型，有以下常量的定义：
常数
Original:
Constant
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 Explanation
app
寻求每次写操作之前的数据流结束
Original:
seek to the end of stream before each write
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binary
打开二进制模式
Original:
open in binary mode
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in
打开阅读
Original:
open for reading
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out
打开写作
Original:
open for writing
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trunc
丢弃打开时的流的内容
Original:
discard the contents of the stream when opening
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ate
寻求到的数据流结束后，立即打开
Original:
seek to the end of stream immediately after open
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Original:
specifies stream open mode. It is bitmask type, the following constants are defined:
常数
Original:
Constant
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 Explanation
app
寻求每次写操作之前的数据流结束
Original:
seek to the end of stream before each write
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binary
打开二进制模式
Original:
open in binary mode
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in
打开阅读
Original:
open for reading
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out
打开写作
Original:
open for writing
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trunc
丢弃打开时的流的内容
Original:
discard the contents of the stream when opening
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ate
寻求到的数据流结束后，立即打开
Original:
seek to the end of stream immediately after open
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other -
另一个文件流作为源使用
Original:
another file stream to use as source
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[编辑] 为例

#include <fstream>
#include <utility>
#include <string>
int main()
{
std::fstream f0;
    std::fstream f1("test.bin", std::ios::binary);
    std::string name = "example.txt";
    std::fstream f2(name);
    std::fstream f3(std::move(f1));
}


[编辑] 另请参阅
打开一个文件，并将它与数据流
Original:
opens a file and associates it with the stream
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（公共成员函数） [edit]
打开一个文件，并将其配置为相应的字符序列
Original:
opens a file and configures it as the associated character sequence
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（公共成员函数of std::basic_filebuf） [edit]
取代了rdbuf不清除其错误状态
Original:
replaces the rdbuf without clearing its error state
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（受保护的成员函数） [edit]
构造对象
Original:
constructs the object
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（公共成员函数of std::basic_iostream） [edit]
来自“http://zh.cppreference.com/mwiki/index.php?title=cpp/io/basic_fstream/basic_fstream&oldid=28882”