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std::basic_ios — cppreference.com

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Déclaré dans l'en-tête

<ios>

template< class CharT, class Traits = std::char_traits<CharT> > class basic_ios;

Le basic_ios classe fournit des facilités pour l'interfaçage avec des objets qui ont l'interface basic_streambuf. Plusieurs objets basic_ios peut se référer à un objet basic_streambuf réelle. Les drapeaux courts de type de formatage à charge et état d'erreur est stocké dans la classe basic_ios .

Original:

The class basic_ios provides facilities for interfacing with objects that have basic_streambuf interface. Several basic_ios objects can refer to one actual basic_streambuf object. Character type dependent formatting flags and error state is stored in basic_ios class.

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cpp/io/ios base

Inheritance diagram

Deux spécialisations pour les types de caractères communs sont également fournis:

Original:

Two specializations for common character types are also provided:

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Type d'

Original:

Type

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 Definition
ios basic_ios<char>
wios basic_ios<wchar_t>

Types de membres

Type du membre Définition
char_type CharT[edit]
traits_type Traits[edit]
int_type Traits::int_type[edit]
pos_type Traits::pos_type[edit]
off_type Traits::off_type[edit]

Fonctions membres publiques

Construit l'objet

Original:

constructs the object

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(fonction membre publique) [edit]

Détruit l'objet

Original:

destructs the object

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(fonction membre publique) [edit]

operator=

l'opérateur d'affectation de copie est supprimée

Original:

the copy assignment operator is deleted

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(fonction membre publique)

Fonctions de l'État

Original:

State functions

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vérifie si aucune erreur n'est survenue dire opérations E / S sont disponibles

Original:

checks if no error has occurred i.e. I/O operations are available

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(fonction membre publique) [edit]

vérifie si fin de fichier a été atteinte

Original:

checks if end-of-file has been reached

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(fonction membre publique) [edit]

vérifie si une erreur irrécupérable s'est produite

Original:

checks if a recoverable error has occurred

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(fonction membre publique) [edit]

vérifie si une erreur irrécupérable s'est produite

Original:

checks if a non-recoverable error has occurred

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(fonction membre publique) [edit]

vérifie si une erreur s'est produite (synonyme de

fail()

)

Original:

checks if an error has occurred (synonym of

fail()

)

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(fonction membre publique) [edit]

(avant C++11)
(depuis C++11)

vérifie si aucune erreur ne s'est produite (synonyme de !fail())

Original:

checks if no error has occurred (synonym of !fail())

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(fonction membre publique) [edit]

retourne drapeaux nationaux

Original:

returns state flags

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(fonction membre publique) [edit]

définit des indicateurs d'état

Original:

sets state flags

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(fonction membre publique) [edit]

efface les indicateurs d'erreur et eof

Original:

clears error and eof flags

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(fonction membre publique) [edit]

Mise en forme

Original:

Formatting

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copies de formater l'information

Original:

copies formatting information

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(fonction membre publique) [edit]

gère le caractère de remplissage

Original:

manages the fill character

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(fonction membre publique) [edit]

Divers

Original:

Miscellaneous

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gère masque d'exception

Original:

manages exception mask

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(fonction membre publique) [edit]

définit les paramètres régionaux

Original:

sets the locale

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(fonction membre publique) [edit]

gère tampon de flux associé

Original:

manages associated stream buffer

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(fonction membre publique) [edit]

gère flux liés

Original:

manages tied stream

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(fonction membre publique) [edit]

rétrécit caractères

Original:

narrows characters

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(fonction membre publique) [edit]
widens characters
(fonction membre publique) [edit]

Protégé fonctions membres

initialise un défaut std::basic_ios construit

Original:

initializes a default-constructed std::basic_ios

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(fonction membre protégée) [edit]

se déplace de l'autre, sauf pour std::basic_ios rdbuf

Original:

moves from another std::basic_ios except for rdbuf

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(fonction membre protégée) [edit]

swaps avec une autre std::basic_ios sauf pour rdbuf

Original:

swaps with another std::basic_ios except for rdbuf

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(fonction membre protégée) [edit]

remplace le rdbuf sans effacer l'état d'erreur

Original:

replaces the rdbuf without clearing its error state

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(fonction membre protégée) [edit]

Inherited from std::ios_base

Member functions

Mise en forme

Original:

Formatting

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gère indicateurs de format

Original:

manages format flags

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(fonction membre publique de std::ios_base) [edit]

active l'indicateur de format spécifique

Original:

sets specific format flag

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(fonction membre publique de std::ios_base) [edit]
clears specific format flag
(fonction membre publique de std::ios_base) [edit]

gère précision décimale des opérations en virgule flottante

Original:

manages decimal precision of floating point operations

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(fonction membre publique de std::ios_base) [edit]
manages field width
(fonction membre publique de std::ios_base) [edit]

Locales

Original:

Locales

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fixe locale

Original:

sets locale

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(fonction membre publique de std::ios_base) [edit]

retourne localisation en cours

Original:

returns current locale

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(fonction membre publique de std::ios_base) [edit]

Interne gamme extensible

Original:

Internal extensible array

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[

statique

Original:

static

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]

renvoie un entier ensemble du programme unique qui est sûr à utiliser comme indice de motpasse () et iword ()

Original:

returns a program-wide unique integer that is safe to use as index to pword() and iword()

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(fonction membre publique statique de std::ios_base) [edit]

redimensionne le stockage privé et le cas échéant un accès à l'élément de long à l'index donné

Original:

resizes the private storage if necessary and access to the long element at the given index

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(fonction membre publique de std::ios_base) [edit]

redimensionne le stockage privé et le cas échéant un accès à l'élément de void* à l'index donné

Original:

resizes the private storage if necessary and access to the void* element at the given index

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(fonction membre publique de std::ios_base) [edit]

Divers

Original:

Miscellaneous

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enregistre fonction de rappel d'événement

Original:

registers event callback function

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(fonction membre publique de std::ios_base) [edit]

[

statique

Original:

static

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]

définit si le C + + et C des bibliothèques d'entrées-sorties sont interopérables

Original:

sets whether C++ and C IO libraries are interoperable

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(fonction membre publique statique de std::ios_base) [edit]

Classes de membres

Original:

Member classes

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exception ruisseau

Original:

stream exception

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(classe membre publique de std::ios_base) [edit]

initialise les objets de flux standard

Original:

initializes standard stream objects

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(classe membre publique de std::ios_base) [edit]

Types de membres et de constantes

Original:

Member types and constants

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Type d'

Original:

Type

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 Explanation

type de mode de flux ouvert Les constantes suivantes sont également définis:

Original:

stream open mode type The following constants are also defined:

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Constante

Original:

Constant

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 Explanation[edit]
app

demander à l'extrémité du flux avant chaque écriture

Original:

seek to the end of stream before each write

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[edit]
binary

ouvrir en mode binaire

Original:

open in binary mode

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[edit]
in

ouvrir en lecture

Original:

open for reading

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[edit]
out

ouvrir en écriture

Original:

open for writing

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[edit]
trunc

jeter le contenu du courant lors de l'ouverture

Original:

discard the contents of the stream when opening

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[edit]
ate

demander à l'extrémité du flux immédiatement après ouverture

Original:

seek to the end of stream immediately after open

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[edit]

(typedef) [edit]

la mise en forme des drapeaux de type Les constantes suivantes sont également définis:

Original:

formatting flags type The following constants are also defined:

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Constante

Original:

Constant

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 Explanation[edit]
dec

utiliser la base décimale pour l'entier I / O

Original:

use decimal base for integer I/O

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[edit]
oct

utiliser octal de base pour l'entier I / O

Original:

use octal base for integer I/O

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[edit]
hex

utiliser la base hexadécimale entier I / O

Original:

use hexadecimal base for integer I/O

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[edit]
basefield

dec|oct|hex|0. Utile pour masquer les opérations

Original:

dec|oct|hex|0. Useful for masking operations

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[edit]
left

réglage gauche (ajoute des caractères de remplissage à droite)

Original:

left adjustment (adds fill characters to the right)

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[edit]
right

réglage de droite (ajoute des caractères de remplissage à gauche)

Original:

right adjustment (adds fill characters to the left)

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[edit]
internal

ajustement interne (ajoute des caractères de remplissage au point interne désignée)

Original:

internal adjustment (adds fill characters to the internal designated point)

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[edit]
adjustfield

left|right|internal. Utile pour masquer les opérations

Original:

left|right|internal. Useful for masking operations

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[edit]
scientific

générer des types virgule flottante en utilisant la notation scientifique, ou une notation hexadécimale s'il est combiné avec fixe

Original:

generate floating point types using scientific notation, or hex notation if combined with fixed

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[edit]
fixed

générer des types virgule flottante en utilisant la notation fixe ou notation hexadécimale si elle est combinée avec les scientifiques

Original:

generate floating point types using fixed notation, or hex notation if combined with scientific

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[edit]
floatfield

scientific|fixed|(scientific|fixed)|0. Utile pour masquer les opérations

Original:

scientific|fixed|(scientific|fixed)|0. Useful for masking operations

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[edit]
boolalpha

insérer et d'extraire de type bool au format alphanumérique

Original:

insert and extract bool type in alphanumeric format

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[edit]
showbase

générer un préfixe indiquant la base numérique pour la sortie de nombre entier, nécessitent l'indicateur monnaie monétaire I / O

Original:

generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O

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[edit]
showpoint

générer un caractère point décimal sans condition pour la sortie de nombre à virgule flottante

Original:

generate a decimal-point character unconditionally for floating-point number output

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[edit]
showpos

générer un caractère + pour les non-négative de sortie numérique

Original:

generate a + character for non-negative numeric output

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[edit]
skipws

sauter espaces en tête avant les opérations d'entrée de certains

Original:

skip leading whitespace before certain input operations

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[edit]
unitbuf

rincer la sortie après chaque opération de sortie

Original:

flush the output after each output operation

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[edit]
uppercase

remplacer certaines lettres minuscules avec leurs uppercase
equivalents dans certaines opérations de sortie de sortie

Original:

replace certain lowercase letters with their uppercase
equivalents in certain output output operations

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[edit]

(typedef) [edit]

état du type de flux Les constantes suivantes sont également définis:

Original:

state of the stream type The following constants are also defined:

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Constante

Original:

Constant

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 Explanation[edit]
goodbit

pas d'erreur

Original:

no error

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[edit]
badbit

erreur de flux irrécupérables

Original:

irrecoverable stream error

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[edit]
failbit

d'entrée / sortie de l'opération a échoué (erreur de formatage ou d'extraction)

Original:

input/output operation failed (formatting or extraction error)

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[edit]
eofbit

séquence d'entrée associé a atteint la fin de fichier

Original:

associated input sequence has reached end-of-file

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[edit]

(typedef) [edit]

cherchant type de direction Les constantes suivantes sont également définis:

Original:

seeking direction type The following constants are also defined:

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Constante

Original:

Constant

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 Explanation[edit]
beg

le début d'un flux

Original:

the beginning of a stream

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[edit]
end

la fin d'un cours d'eau

Original:

the ending of a stream

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[edit]
cur

la position actuelle de l'indicateur de position courant

Original:

the current position of stream position indicator

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[edit]

(typedef) [edit]

spécifie le type d'événement

Original:

specifies event type

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(enum) [edit]

callback type de fonction

Original:

callback function type

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(typedef) [edit]