std::streamoff

 

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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）

 

Defined in header <ios>
typedef /*unspecified*/ streamoff;

的类型std::streamoff是一个带符号的整数类型的大小足以代表由操作系统支持的可能的最大文件的大小。通常情况下，这是一个typedeflong long.

Original:

The type std::streamoff is a signed integral type of sufficient size to represent the maximum possible file size supported by the operating system. Typically, this is a typedef to long long.

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它是用来表示从流位置的偏移（类型std::fpos值）。一个std::streamoff的-1一些I / O库函数，也可以用来表示错误条件.

Original:

It is used to represent offsets from stream positions (values of type std::fpos). A std::streamoff value of -1 is also used to represent error conditions by some of the I/O library functions.

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的关系与std :: FPOS的

• 两个std::fpos对象之间的差异是一个值类型std::streamoff

  Original:

  the difference between two std::fpos objects is a value of type std::streamoff

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• std::streamoff类型的值可能会增加或减去std::fpos产生了不同的std::fpos.

  Original:

  a value of type std::streamoff may be added or subtracted from std::fpos yielding a different std::fpos.

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• std::fpos类型的值隐式转换为std::streamoff（转换结果的文件开始的偏移量

  Original:

  a value of type std::fpos is implicitly convertible to std::streamoff (the conversion results in the offset from the beginning of the file.

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• std::fpos类型的值类型的值是构造的std::streamoff

  Original:

  a value of type std::fpos is constructible from a value of type std::streamoff

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另请参阅

fpos	在流或文件的绝对位置 Original: represents absolute position in a stream or a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （类模板）
seekg	sets the input position indicator （公共成员函数of std::basic_istream）
seekp	设置输出位置指示器 Original: sets the output position indicator 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of std::basic_ostream）