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std::fpos

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C++
 
Библиотеки ввода / вывода
I / O манипуляторов
C-стиль I / O
Буферы
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(устарело)
Потоки
Original:
Streams
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Абстракций
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Файл I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Струнный I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Массив I / O
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Array I/O
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istrstream(устарело)
ostrstream(устарело)
strstream(устарело)
Типы
Original:
Types
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streamoff
streamsize
fpos
Интерфейс Ошибка категории
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
Заголовочный файл <ios>
template< class State >
class fpos;
Специализация шаблона класса std::fpos определить абсолютные позиции в потоке или в файл. Каждый объект типа fpos занимает позицию байта в потоке (как правило, в частных член типа std::streamoff) и текущее состояние сдвига, значения типа State (как правило, std::mbstate_t).
Original:
Specializations of the class template std::fpos identify absolute positions in a stream or in a file. Each object of type fpos holds the byte position in the stream (typically as a private member of type std::streamoff) and the current shift state, a value of type State (typically std::mbstate_t).
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Четыре специализации std::fpos предоставляются
Original:
Four specializations of std::fpos are provided:
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Определено в файле <ios>
Type
Original:
Type
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 Definition
streampos std::fpos<std::char_traits<char>::state_type>
u16streampos std::fpos<std::char_traits<char16_t>::state_type>
u32streampos std::fpos<std::char_traits<char32_t>::state_type>
wstreampos std::fpos<std::char_traits<wchar_t>::state_type>

[править] Член функций
возвращает / устанавливает величину сдвига государства
Original:
gets/sets the value of the shift state
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(public функция-член)
Кроме того, следующие функции члена и операторы должны быть обеспечены, хотя это не определено, если они являются членами или не членами.
Original:
In addition, the following member functions and operators must be provided, although it's unspecified if they are members or non-member.
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  • Конструктор, который принимает аргумент типа int.
    Original:
    A constructor that accepts an argument of type int.
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  • Конструктор, который принимает аргумент типа std::streamoff. Этот конструктор также должны принимать специальные std::streamoff(-1) значение: std::fpos построена таким образом, возвращаются некоторые потока операций указывают на ошибки.
    Original:
    A constructor that accepts an argument of type std::streamoff. This constructor must also accept the special value std::streamoff(-1): the std::fpos constructed in this manner is returned by some stream operations to indicate errors.
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  • Оператор преобразования, которая преобразует fpos в std::streamoff со значением, равным смещение от std::fpos(0).
    Original:
    A conversion operator that converts fpos to std::streamoff with the value equal to the offset from std::fpos(0).
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  • operator==, которая сравнивает два объекта типа std::fpos и возвращает значение типа, конвертируемых в bool
    Original:
    operator== that compares two objects of type std::fpos and returns a value of type convertible to bool
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  • operator!=, которая сравнивает два объекта типа std::fpos и возвращает значение типа, конвертируемых в bool
    Original:
    operator!= that compares two objects of type std::fpos and returns a value of type convertible to bool
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  • operator+ и operator+= который можно добавить к std::streamoff std::fpos
    Original:
    operator+ and operator+= which can add std::streamoff to std::fpos
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  • operator- и operator-= которые можно вычесть из std::streamoff std::fpos
    Original:
    operator- and operator-= which can subtract std::streamoff from an std::fpos
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  • operator- которые можно вычесть два объекта типа std::fpos производства std::streamoff
    Original:
    operator- which can subtract two objects of type std::fpos producing an std::streamoff
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[править] См. также
представляет собой относительную файла / потока позицию (смещение от FPOS), достаточные для представления любого размера файла
Original:
represents relative file/stream position (offset from fpos), sufficient to represent any file size
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(определение типа)
возвращает индикатор выхода положение
Original:
returns the output position indicator
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(public функция-член std::basic_ostream) [edit]
устанавливает индикатор выхода положение
Original:
sets the output position indicator
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(public функция-член std::basic_ostream) [edit]
получает индикатор позиции файла
Original:
gets the file position indicator
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(функция) [edit]
Источник — «http://ru.cppreference.com/mwiki/index.php?title=cpp/io/fpos&oldid=28609»