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std::money_get

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< cpp‎ | locale

 
 
Bibliothèque localisations
Locales et facettes
Original:
Locales and facets
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locale
Classification des caractères
Original:
Character classification
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Conversions
Original:
Conversions
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Classes de facettes catégorie de base
Original:
Facet category base classes
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Catégories de facettes
Original:
Facet categories
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Spécifique aux paramètres régionaux facettes
Original:
Locale-specific facets
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Facettes de conversion de code
Original:
Code conversion facets
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codecvt_utf8 (C++11)
codecvt_utf16 (C++11)
C locale
Original:
C locale
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std::money_get
Les fonctions membres
Original:
Member functions
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money_get::money_get
money_get::~money_get
money_get::get
money_get::do_get
 
Defined in header <locale>
template<

    class CharT,
    class InputIt = std::istreambuf_iterator<CharT>

> class money_get;
std::money_get modèle de classe encapsule les règles d'analyse des valeurs monétaires à partir des flux de caractères. Le manipulateur std::get_money E / S standard utilise la facette std::money_get de la localisation du flux d'E / S .
Original:
Class template std::money_get encapsulates the rules for parsing monetary values from character streams. The standard I/O manipulator std::get_money uses the std::money_get facet of the I/O stream's locale.
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cpp/locale/locale/facetstd-money get-inheritance.svg
À propos de cette image

Inheritance diagram

Sommaire

[modifier] Exigences de type

-
InputIt must meet the requirements of InputIterator.

[modifier] Spécialisations

Deux spécialisations et deux spécialisations partielles sont fournies par la bibliothèque standard et sont mises en œuvre par tous les objets créés dans un environnement linguistique programme C + +:
Original:
Two specializations and two partial specializations are provided by the standard library and are implemented by all locale objects created in a C++ program:
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Defined in header <locale>
std::money_get<char>
analyse des représentations de chaîne étroites de valeurs monétaires
Original:
parses narrow string representations of monetary values
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std::money_get<wchar_t>
analyse des représentations de chaîne de l'échelle des valeurs monétaires
Original:
parses wide string representations of monetary values
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std::money_get<char, InputIt>
analyse des représentations de chaîne de valeurs monétaires étroits avec itérateur d'entrée personnalisé
Original:
parses narrow string representations of monetary values using custom input iterator
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std::money_get<wchar_t, InputIt>
analyse des représentations de chaîne de l'échelle des valeurs monétaires à l'aide itérateur d'entrée personnalisé
Original:
parses wide string representations of monetary values using custom input iterator
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[modifier] Types de membres

Type du membre Définition
char_type CharT
string_type std::basic_string<CharT>
iter_type InputIt

[modifier] Fonctions membres

construit un nouveau money_get facette
Original:
constructs a new money_get facet
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(fonction membre publique)
Détruit une facette money_get
Original:
destructs a money_get facet
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(fonction membre protégée)
Invoque do_get
Original:
invokes do_get
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(fonction membre publique)

[modifier] Protégé fonctions membres

[
virtuel
Original:
virtual
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]
analyse une valeur monétaire à partir d'un flux d'entrée
Original:
parses a monetary value from an input stream
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(fonction membre virtuelle protégée)

[modifier] Objets membres

static std::locale::id id
Id de la localisation
Original:
id of the locale
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(objet membre public)

[modifier] Exemple

#include <iostream>
#include <sstream>
#include <locale>
#include <iomanip>
#include <iterator>
int main()
{
    std::string str = "$1.11 $2.22 $3.33";
    std::cout << std::fixed << std::setprecision(2);
 
    std::cout << '"' << str << "\" parsed with the I/O manipulator: ";
    std::istringstream s1(str);
    s1.imbue(std::locale("en_US.UTF-8"));
    long double val;
    while(s1 >> std::get_money(val))
        std::cout << val/100 << ' ';
    std::cout << '\n';
 
    str = "USD  1,234.56";
    std::cout << '"' << str << "\" parsed with the facet directly: ";
    std::istringstream s2(str);
    s2.imbue(std::locale("en_US.UTF-8"));
    auto& f = std::use_facet<std::money_get<char>>(s2.getloc());
    std::ios_base::iostate err;
    std::istreambuf_iterator<char> beg(s2), end;
    f.get(beg, end, true, s2, err, val);
    std::cout << val/100 << '\n';
}

Résultat :

"$1.11 $2.22 $3.33" parsed with the I/O manipulator: 1.11 2.22 3.33
"USD  1,234.56" parsed with the facet directly: 1234.56

[modifier] Voir aussi

définit les paramètres de mise en forme monétaire utilisés par std::money_get et std::money_put
Original:
defines monetary formatting parameters used by std::money_get and std::money_put
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(classe générique) [edit]
formate une valeur monétaire pour la sortie comme une séquence de caractères
Original:
formats a monetary value for output as a character sequence
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(classe générique) [edit]
(C++11)
analyse une valeur monétaire
Original:
parses a monetary value
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(fonction générique)