std::ios_base

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics库

输入/输出库

本地化库

正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

输入/输出库

I / O操纵

C-风格的I / O

缓冲区 Original: Buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf （过时了）

流 Original: Streams The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

抽象 Original: Abstractions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

文件I / O Original: File I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_ifstream

basic_ofstream

basic_fstream

字符串I / O Original: String I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_istringstream

basic_ostringstream

basic_stringstream

阵列的I / O Original: Array I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

istrstream （过时了）

ostrstream （过时了）

strstream （过时了）

类型 Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

streamoff

streamsize

fpos

Error类的接口 Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category （C++11）

io_errc （C++11）

 

std::ios_base

成员函数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::ios_base

ios_base::~ios_base

格式化 Original: Formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::flags

ios_base::setf

ios_base::unsetf

ios_base::precision

ios_base::width

语言环境 Original: Locales The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::imbue

ios_base::getloc

内部可扩展的阵列 Original: Internal extensible array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::xalloc

ios_base::iword

ios_base::pword

杂项 Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::register_callback

ios_base::sync_with_stdio

会员类别 Original: Member classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::failure

ios_base::Init

会员类型 Original: Member types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base::openmode

ios_base::fmtflags

ios_base::iostate

ios_base::seekdir

ios_base::event

ios_base::event_callback

 

Defined in header <ios>
class ios_base;

类ios_base是一种多用途，作为所有的I / O流类的基类的类。它维护了多种类型的数据：1

Original:

The class ios_base is a multipurpose class that serves as the base class for all I/O stream classes. It maintains several kinds of data:

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1)

状态信息：流的状态标志

Original:

state information: stream status flags

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2)

控制信息：标记，以控制格式的输入和输出序列和灌输的语言环境

Original:

control information: flags that control formatting of both input and output sequences and the imbued locale

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3)

私有存储：索引可扩展的数据结构，该结构允许两个long和void*成员，这可以被实现为两个任意长度的阵列或一个单一的阵列，两个元素的结构或另一个容器.

Original:

private storage: indexed extensible data structure that allows both long and void* members, which may be implemented as two arbitrary-length arrays or a single array of two-element structs or another container.

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4)

回调：任意数量的用户定义函数被称为，灌输（），copyfmt（），，〜的ios_bas​​e（）

Original:

callbacks: arbitrary number of user-defined functions to be called from imbue(), copyfmt(), and ~ios_base()

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典型的实现拥有成员常数对应的所有值fmtflags，iostate，openmode的，seekdir如下图所示，成员变量，以维持电流精度，宽度和格式化标志，异常掩码，的缓冲区错误状态，一个可调整大小的容器持有的回调，目前一脉相承的语言环境，私人存储和静态，整数变量xalloc（）.

Original:

Typical implementation holds member constants corresponding to all values of fmtflags, iostate, openmode, and seekdir shown below, member variables to maintain current precision, width, and formatting flags, the exception mask, the buffer error state, a resizeable container holding the callbacks, the currently imbued locale, the private storage, and a static integer variable for xalloc().

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成员函数

(constructor)	构造对象 Original: constructs the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （受保护的成员函数）
(destructor) [虚拟的] </ SPAN></div></div>	解构的对象 Original: destructs the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虚拟公有成员函数）
格式化 Original: Formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
flags	管理格式的标志 Original: manages format flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
setf	设置特定格式的标志 Original: sets specific format flag The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
unsetf	clears specific format flag （公共成员函数）
precision	管理小数精度浮点运算 Original: manages decimal precision of floating point operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
width	manages field width （公共成员函数）
语言环境 Original: Locales The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
imbue	设置场景 Original: sets locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
getloc	返回当前的区域设置 Original: returns current locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
内部可扩展的阵列 Original: Internal extensible array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
xalloc [静态的] </ SPAN></div></div>	返回一个程序范围内唯一的整数，它是安全使用指数PWORD（）和iword（） Original: returns a program-wide unique integer that is safe to use as index to pword() and iword() The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共静态成员函数）
iword	调整大小的私人存储，如果必要的，访问long元素在给定的索引 Original: resizes the private storage if necessary and access to the long element at the given index The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
pword	调整大小的私人存储，如果必要的，访问void*元素在给定的索引 Original: resizes the private storage if necessary and access to the void* element at the given index The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
杂项 Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
register_callback	registers event callback function （公共成员函数）
sync_with_stdio [静态的] </ SPAN></div></div>	C + +和C IO库的设置是否是可互操作的 Original: sets whether C++ and C IO libraries are interoperable The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共静态成员函数）
会员类别 Original: Member classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
failure	流异常 Original: stream exception The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员类）
Init	标准流对象进行初始化 Original: initializes standard stream objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员类）

会员类型和常量 Original: Member types and constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
类型 Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Explanation
openmode	流开放的模式类型 有以下常量的定义： 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. binary 打开二进制模式 Original: open in binary mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. in 打开阅读 Original: open for reading The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out 打开写作 Original: open for writing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. trunc 丢弃打开时的流的内容 Original: discard the contents of the stream when opening The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Original: stream open mode type The following constants are also defined: 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. binary 打开二进制模式 Original: open in binary mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. in 打开阅读 Original: open for reading The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out 打开写作 Original: open for writing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. trunc 丢弃打开时的流的内容 Original: discard the contents of the stream when opening The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （的typedef）
fmtflags	格式化标志类型 有以下常量的定义： 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation dec 使用十进制整数I / O Original: use decimal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. oct 使用八进制基地整数I / O Original: use octal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. hex 使用16进制整数I / O Original: use hexadecimal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. basefield dec|oct|hex|0。用于屏蔽操作 Original: dec|oct|hex|0. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. left 左调整（填充字符添加到右侧） Original: left adjustment (adds fill characters to the right) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. right 右调整（填充字符添加到左） Original: right adjustment (adds fill characters to the left) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. internal 内部调整（填充字符添加到内部指定的点） Original: internal adjustment (adds fill characters to the internal designated point) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. adjustfield left|right|internal。用于屏蔽操作 Original: left|right|internal. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. scientific 产生的浮点类型，如果再加上固定用科学记数法，或十六进制记数法 Original: generate floating point types using scientific notation, or hex notation if combined with fixed The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. fixed 产生的浮点类型，使用固定的符号，或十六进制记数法如果与科学相结合 Original: generate floating point types using fixed notation, or hex notation if combined with scientific The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. floatfield scientific|fixed|(scientific|fixed)|0。用于屏蔽操作 Original: scientific|fixed|(scientific|fixed)|0. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. boolalpha 插入和提取bool类型字母数字格式 Original: insert and extract bool type in alphanumeric format The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showbase 生成一个的前缀表示数字的整数输出基地，需要的I / O货币的货币指标 Original: generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showpoint 无条件地为浮点数输出生成一个小数点字符 Original: generate a decimal-point character unconditionally for floating-point number output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showpos 生成+字符对于非负的数值输出 Original: generate a + character for non-negative numeric output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. skipws 一定的输入操作之前，跳过前导空白 Original: skip leading whitespace before certain input operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. unitbuf 冲洗后的输出的每个输出操作 Original: flush the output after each output operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. uppercase 更换一定的小写字母与他们的uppercase equivalents在一定的输出输出操作 Original: replace certain lowercase letters with their uppercase equivalents in certain output output operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Original: formatting flags type The following constants are also defined: 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation dec 使用十进制整数I / O Original: use decimal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. oct 使用八进制基地整数I / O Original: use octal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. hex 使用16进制整数I / O Original: use hexadecimal base for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. basefield dec|oct|hex|0。用于屏蔽操作 Original: dec|oct|hex|0. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. left 左调整（填充字符添加到右侧） Original: left adjustment (adds fill characters to the right) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. right 右调整（填充字符添加到左） Original: right adjustment (adds fill characters to the left) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. internal 内部调整（填充字符添加到内部指定的点） Original: internal adjustment (adds fill characters to the internal designated point) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. adjustfield left|right|internal。用于屏蔽操作 Original: left|right|internal. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. scientific 产生的浮点类型，如果再加上固定用科学记数法，或十六进制记数法 Original: generate floating point types using scientific notation, or hex notation if combined with fixed The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. fixed 产生的浮点类型，使用固定的符号，或十六进制记数法如果与科学相结合 Original: generate floating point types using fixed notation, or hex notation if combined with scientific The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. floatfield scientific|fixed|(scientific|fixed)|0。用于屏蔽操作 Original: scientific|fixed|(scientific|fixed)|0. Useful for masking operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. boolalpha 插入和提取bool类型字母数字格式 Original: insert and extract bool type in alphanumeric format The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showbase 生成一个的前缀表示数字的整数输出基地，需要的I / O货币的货币指标 Original: generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showpoint 无条件地为浮点数输出生成一个小数点字符 Original: generate a decimal-point character unconditionally for floating-point number output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. showpos 生成+字符对于非负的数值输出 Original: generate a + character for non-negative numeric output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. skipws 一定的输入操作之前，跳过前导空白 Original: skip leading whitespace before certain input operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. unitbuf 冲洗后的输出的每个输出操作 Original: flush the output after each output operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. uppercase 更换一定的小写字母与他们的uppercase equivalents在一定的输出输出操作 Original: replace certain lowercase letters with their uppercase equivalents in certain output output operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （的typedef）
iostate	流类型的状态 有以下常量的定义： 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation goodbit 没有错误 Original: no error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. badbit 无法收回的流错误 Original: irrecoverable stream error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. failbit 输入/输出操作失败，（格式化或提取错误） Original: input/output operation failed (formatting or extraction error) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. eofbit 相关的输入序列中已达到文件结束 Original: associated input sequence has reached end-of-file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Original: state of the stream type The following constants are also defined: 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation goodbit 没有错误 Original: no error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. badbit 无法收回的流错误 Original: irrecoverable stream error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. failbit 输入/输出操作失败，（格式化或提取错误） Original: input/output operation failed (formatting or extraction error) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. eofbit 相关的输入序列中已达到文件结束 Original: associated input sequence has reached end-of-file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （的typedef）
seekdir	seeking direction type The following constants are also defined: 常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation beg 流的开头 Original: the beginning of a stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. end 流的结束 Original: the ending of a stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. cur 流中的当前位置的位置指示器 Original: the current position of stream position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （的typedef）
event	指定事件类型 Original: specifies event type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （枚举）
event_callback	回调函数类型 Original: callback function type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （的typedef）
已过时的成员类型 Original: Deprecated member types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
类型 Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Explanation
io_state（过时了）	整数类型，也可以使用类似iostate Original: integer type that may be used like iostate The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
open_mode（过时了）	整数类型，也可以使用类似openmode Original: integer type that may be used like openmode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
seek_dir（过时了）	整数类型，也可以使用类似seekdir Original: integer type that may be used like seekdir The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
streamoff（过时了）	未指定的类型，也可以使用像off_type，不一定std::streamoff Original: unspecified type that may be used like off_type, not necessarily std::streamoff The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
streampos（过时了）	未指定的类型，也可以使用像pos_type，不一定std::streampos Original: unspecified type that may be used like pos_type, not necessarily std::streampos The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.