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std::money_get

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< cpp‎ | locale

 
 
Localizaciones biblioteca
Locales y facetas
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Locales and facets
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locale
Carácter clasificación
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Character classification
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Conversiones
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Conversions
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Facet clases categoría base
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Facet category base classes
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Categorías faceta
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Facet categories
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Específico de la localidad facetas
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Locale-specific facets
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Facetas código de conversión
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Code conversion facets
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codecvt_utf8(C++11)
codecvt_utf16(C++11)
C locale
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C locale
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std::money_get
Las funciones miembro
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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 clase de plantilla encapsula las reglas para analizar los valores monetarios de los flujos de caracteres. El estándar de E / S std::get_money manipulador utiliza la faceta std::money_get de la configuración regional del flujo de I / O .
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
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Inheritance diagram

Contenido

[editar] Tipo de requisitos

-
InputIt must meet the requirements of InputIterator.

[editar] Especializaciones

Dos especializaciones y dos especializaciones parciales son proporcionados por la biblioteca estándar y son aplicadas por todos los objetos creados en un entorno nacional C + + programa:
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>
analiza las representaciones de cadena de valores estrechos monetarios
Original:
parses narrow string representations of monetary values
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std::money_get<wchar_t>
analiza las representaciones de ancho de cadena de valores monetarios
Original:
parses wide string representations of monetary values
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std::money_get<char, InputIt>
analiza las representaciones de cadena de valores estrechos monetarios utilizando iterador de entrada personalizado
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parses narrow string representations of monetary values using custom input iterator
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std::money_get<wchar_t, InputIt>
analiza las representaciones de ancho de cadena de valor de la moneda con iterador de entrada personalizado
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parses wide string representations of monetary values using custom input iterator
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[editar] Tipos de miembros

Miembro de tipo
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Member type
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Definition
char_type CharT
string_type std::basic_string<CharT>
iter_type InputIt

[editar] Las funciones miembro

construye una nueva faceta money_get
Original:
constructs a new money_get facet
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(miembro público función)
destructs una faceta money_get
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destructs a money_get facet
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(protegidos función miembro)
Invoca do_get
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invokes do_get
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(miembro público función)

[editar] Protegido funciones miembro

[virtual]
analiza un valor monetario de un flujo de entrada
Original:
parses a monetary value from an input stream
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(virtuales protegidos miembro de función)

[editar] Objetos miembros

static std::locale::id id
Identificador de la configuración regional
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id of the locale
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(objeto miembro del público)

[editar] Ejemplo

#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';
}

Output:

"$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

[editar] Ver también

define los parámetros de formato monetario utilizados por std::money_get y std::money_put
Original:
defines monetary formatting parameters used by std::money_get and std::money_put
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(clase de plantilla) [edit]
formatos de un valor monetario para la salida como una secuencia de caracteres
Original:
formats a monetary value for output as a character sequence
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(clase de plantilla) [edit]
(C++11)
analiza un valor monetario
Original:
parses a monetary value
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(función de plantilla)