Conceptos C++: UnformattedInputFunction

 

C++

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Biblioteca estándar

Encabezados de la biblioteca estándar

Requisitos denominados

Macros de prueba de característica (C++20)

Biblioteca de apoyo del lenguaje

Biblioteca de conceptos (C++20)

Biblioteca de diagnósticos

Biblioteca de gestión de memoria

Biblioteca de metaprogramación (C++11)

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Biblioteca de rangos (C++20)

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Biblioteca de procesamiento de texto

Biblioteca numérica

Biblioteca de fecha y hora

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Biblioteca del sistema de archivos (C++17)

Biblioteca de apoyo de concurrencia (C++11)

Biblioteca de apoyo de ejecución (C++26)

Especificaciones técnicas

Índice de símbolos

Bibliotecas externas

 

C + + conceptos

Básica Original: Basic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
DefaultConstructible CopyAssignable CopyConstructible	MoveAssignable (C++11) MoveConstructible (C++11) Destructible
Biblioteca-Wide Original: Library-Wide The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
EqualityComparable LessThanComparable Swappable (C++11) ValueSwappable (C++11)	NullablePointer (C++11) Hash (C++11) Allocator
Container Original: Container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Container SequenceContainer ReversibleContainer	AssociativeContainer AllocatorAwareContainer UnorderedAssociativeContainer (C++11)
Elementos contenedores Original: Container Elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CopyInsertable (C++11) MoveInsertable (C++11)	EmplaceConstructible (C++11)
Iterator Original: Iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Iterator OutputIterator InputIterator	ForwardIterator BidirectionalIterator RandomAccessIterator
Números aleatorios Original: Random Numbers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
SeedSequence (C++11) RandomNumberEngine (C++11)	RandomNumberDistribution (C++11) UniformRandomNumberGenerator (C++11) RandomNumberEngineAdaptor (C++11)
Concurrencia Original: Concurrency The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
BasicLockable (C++11) Lockable (C++11) TimedLockable (C++11)	Mutex (C++11) TimedMutex (C++11)
Otros Original: Other The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CharTraits pos_type off_type Clock (C++11)	UnaryTypeTrait (C++11) BinaryTypeTrait (C++11) TransformationTrait (C++11) TrivialClock (C++11)

 

Requisitos

Un UnformattedInputFunction es una función de entrada de corriente que realiza lo siguiente:

Original:

An UnformattedInputFunction is a stream input function that performs the following:

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• Construye un objeto de tipo basic_istream::sentry con duración de almacenamiento automático y con el argumento noskipws establece en true, que realiza lo siguiente

  Original:

  Constructs an object of type basic_istream::sentry with automatic storage duration and with the noskipws argument set to true, which performs the following

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• si eofbit o badbit se establecen en el flujo de entrada, establece el failbit también, y si las excepciones a failbit están habilitadas en la máscara de excepción esta corriente de entrada, arroja ios_base::failure .

  Original:

  if eofbit or badbit are set on the input stream, sets the failbit as well, and if exceptions on failbit are enabled in this input stream's exception mask, throws ios_base::failure.

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• vacía el empate () 'd stream de salida, si procede

  Original:

  flushes the tie()'d output stream, if applicable

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• Comprueba el estado de la centinela llamando sentry::operator bool(), que es equivalente a basic_ios::good .

  Original:

  Checks the status of the sentry by calling sentry::operator bool(), which is equivalent to basic_ios::good.

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• Si el centinela volvió false o constructor centinela lanzó una excepción:

  Original:

  If the sentry returned false or sentry's constructor threw an exception:

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• establece el número de caracteres extraídos (gcount) en el flujo de entrada a cero

  Original:

  sets the number of extracted characters (gcount) in the input stream to zero

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• si la función se llama a escribir en una matriz de CharT, escribe CharT() (el carácter nulo) a la primera localización de la matriz

  Original:

  if the function was called to write to an array of CharT, writes CharT() (the null character) to the first location of the array

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• Si el centinela volvió true, realiza la entrada

  Original:

  If the sentry returned true, performs the input

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• si se produce una excepción durante la entrada, establece badbit en el flujo de entrada. Si las excepciones en badbit están habilitadas en la máscara de excepción de esta corriente, la excepción se vuelve a iniciar también .

  Original:

  if an exception is thrown during input, sets badbit in the input stream. If exceptions on badbit are enabled in this stream's exception mask, the exception is also rethrown.

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• Si no es la excepción fue lanzada durante la entrada, establece el número de caracteres extraídos (gcount) en la corriente de entrada .

  Original:

  If no exception was thrown during input, sets the number of extracted characters (gcount) in the input stream.

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• En cualquier caso, si termina por excepción o devolver, destructor del centinela se llama antes de salir de esta función .

  Original:

  In any event, whether terminating by exception or returning, the sentry's destructor is called before leaving this function.

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Biblioteca estándar

Las siguientes funciones de la biblioteca estándar son UnformattedInputFunctions .

Original:

The following standard library functions are UnformattedInputFunctions.

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• std::getline, excepto que no modifica gcount .

  Original:

  std::getline, except that it does not modify gcount.

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• basic_istream::operator>>(basic_streambuf*)
• basic_istream::get
• basic_istream::getline
• basic_istream::ignore
• basic_istream::peek
• basic_istream::read
• basic_istream::readsome
• basic_istream::putback, excepto que primero despeja eofbit

  Original:

  basic_istream::putback, except that it first clears eofbit

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• basic_istream::unget, excepto que primero despeja eofbit

  Original:

  basic_istream::unget, except that it first clears eofbit

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• basic_istream::sync, excepto que no modifica gcount

  Original:

  basic_istream::sync, except that it does not modify gcount

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• basic_istream::tellg, excepto que no modifica gcount

  Original:

  basic_istream::tellg, except that it does not modify gcount

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• basic_istream::seekg, excepto que primero despeja eofbit y no modifica gcount

  Original:

  basic_istream::seekg, except that it first clears eofbit and does not modify gcount

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• std::ws, excepto que no modifica gcount

  Original:

  std::ws, except that it does not modify gcount

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