Пространства имён
Варианты
Действия

std::ios_base::iostate

Материал из cppreference.com

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
Библиотеки ввода / вывода
I / O манипуляторов
C-стиль I / O
Буферы
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(устарело)
Потоки
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Абстракций
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
Файл 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
Струнный 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
Массив 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(устарело)
ostrstream(устарело)
strstream(устарело)
Типы
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
Интерфейс Ошибка категории
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
Член функций
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
Форматирование
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
Языки
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
Внутренние расширяемый массив
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
Разное
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
Член классов
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
Член типов
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
 
typedef /*implementation defined*/ iostate;
static constexpr iostate goodbit = 0;
static constexpr iostate badbit = /*implementation defined*/

static constexpr iostate failbit = /*implementation defined*/

static constexpr iostate eofbit = /*implementation defined*/
Задает флаги потока государства. Это BitmaskType, определены следующие константы:
Original:
Specifies stream state flags. It is a BitmaskType, the following constants are defined:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Constant
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
никакой ошибки
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
безвозвратные поток ошибок
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
операции ввода / вывода не удалось (форматирование или извлечения ошибки)
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
связанных входной последовательности достигли конца файла
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.

Содержание

[править] Eofbit

Eofbit устанавливаются следующие стандартные функции библиотеки
Original:
The eofbit is set by the following standard library functions:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Функции строки ввода std::getline, если она завершается по достижении конца потока, в отличие от достижения указанной символ завершения.
    Original:
    The string input function std::getline if it completes by reaching the end of the stream, as opposed to reaching the specified terminating character.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Цифровой перегрузки входа basic_istream::operator>> если конец потока была обнаружена во время чтения следующего символа, на этапе 2 обработки num_get::get. В зависимости от разбора государства, failbit могут или не могут быть установлены одновременно: например, int n; istringstream buf("1"); buf >> n; наборы eofbit, но не failbit: целое 1 был успешно обрабатываются и хранятся в n. С другой стороны, bool b; istringstream buf("tr"); buf >> boolalpha >> b; устанавливает и eofbit и failbit: не было достаточного количества символов для завершения разбора логическое true.
    Original:
    The numeric input overloads of basic_istream::operator>> if the end of the stream was encountered while reading the next character, on Stage 2 of num_get::get processing. Depending on the parsing state, failbit may or may not be set at the same time: for example, int n; istringstream buf("1"); buf >> n; sets eofbit, but not failbit: the integer 1 was successfully parsed and stored in n. On the other hand, bool b; istringstream buf("tr"); buf >> boolalpha >> b; sets both eofbit and failbit: there was not enough characters to complete the parsing of the boolean true.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Характер добычи перегрузки operator>>std::basic_istream, если конец потока достигает до предела (если таковые имеются) на количество символов для извлечения.
    Original:
    The character extraction overloads of operator>>std::basic_istream, if the end of the stream is reached before the limit (if any) on the number of characters to be extracted.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • std::get_time I / O манипулятора и любая из функций std::time_get разбора: time_get::get, time_get::get_time, time_get::get_date и т.д., если конец потока достигает до последнего символа необходимо разобрать ожидаемого значения даты / времени было обработано.
    Original:
    The std::get_time I/O manipulator and any of the std::time_get parsing functions: time_get::get, time_get::get_time, time_get::get_date, etc., if the end of the stream is reached before the last character needed to parse the expected date/time value was processed.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • std::get_money I / O манипулятора и money_get::get функции, если конец потока достигает до последнего символа необходимо разобрать ожидаемой денежной стоимости было обработано.
    Original:
    The std::get_money I/O manipulator and money_get::get function, if the end of the stream is reached before the last character needed to parse the expected monetary value was processed.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • basic_istream::sentry конструктор, выполняется в начале каждого отформатированные функции ввода: если skipws бит не установлен (например, посредством выдачи std::noskipws), часовой читает и отбрасывает ведущих пробелов. Если конец входного потока, достигнутых в ходе этой операции, как eofbit и failbit установлены, и вход не происходит.
    Original:
    The basic_istream::sentry constructor, executed at the beginning of every formatted input function: unless the skipws bit is unset (e.g. by issuing std::noskipws), sentry reads and discards the leading whitespace characters. If the end of the input stream is reached during this operation, both eofbit and failbit are set, and no input takes place.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • I / O манипулятора std::ws, если она достигает конца поток, потребляя при этом пробелы (но, в отличие от отформатированных часовой вход, он не устанавливает failbit в данном случае)
    Original:
    The I/O manipulator std::ws, if it reaches the end of the stream while consuming whitespace (but, unlike the formatted input sentry, it does not set failbit in this case)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Неформатированный функций ввода basic_istream::read, basic_istream::get, и basic_istream::getline, при достижении конца потока.
    Original:
    The unformatted input functions basic_istream::read, basic_istream::get, and basic_istream::getline, when reaching the end of the stream.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Функция сброса входного basic_istream::ignore, при достижении конца потока до достижения указанного символа-разделителя.
    Original:
    The discard input function basic_istream::ignore, when reaching the end of the stream before reaching the specified delimiter character.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Непосредственным basic_istream::readsome функции ввода, если basic_streambuf::in_avail возвращает -1
    Original:
    The immediate input function basic_istream::readsome, if basic_streambuf::in_avail returns -1
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
Следующие функции очистить eofbit как побочный эффект
Original:
The following functions clear eofbit as a side-effect:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[править] Failbit

Failbit устанавливаются следующие стандартные функции библиотеки
Original:
The failbit is set by the following standard library functions:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Этот раздел не завершён

[править] Badbit

Badbit устанавливаются следующие стандартные функции библиотеки
Original:
The badbit is set by the following standard library functions:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Этот раздел не завершён
Причина: move from ios_base::bad and expand

[править] Пример

Этот раздел не завершён
Причина: нет примера

[править] См. также

ios_base::iostate flags basic_ios accessors
eofbit failbit badbit good() fail() bad() eof() operator bool() operator!()
false false false true false false false true false
false false true false true true false false true
false true false false true false false false true
false true true false true true false false true
true false false false false false true true false
true false true false true true true false true
true true false false true false true false true
true true true false true true true false true
Источник — «http://ru.cppreference.com/mwiki/index.php?title=cpp/io/ios_base/iostate&oldid=28485»