Namespace
Varianti

std::numpunct

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< cpp‎ | locale

 
 
Localizzazioni libreria
Impostazioni internazionali e sfaccettature
Original:
Locales and facets
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locale
Carattere classificazione
Original:
Character classification
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Conversioni
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Conversions
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Facet categoria classi di base
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Facet category base classes
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Facet categorie
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Facet categories
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Locale specifici aspetti
Original:
Locale-specific facets
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Codice di conversione sfaccettature
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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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Defined in header <locale>
template< class CharT >
class numpunct;
Il std::numpunct aspetto incapsula preferenze punteggiatura numerici. Flusso di I / O utilizzare std::numpunct attraverso std::num_get e std::num_put per l'analisi input numerico e di uscita formattazione numerica.
Original:
The facet std::numpunct encapsulates numeric punctuation preferences. Stream I/O operations use std::numpunct through std::num_get and std::num_put for parsing numeric input and formatting numeric output.
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cpp/locale/locale/facetstd-numpunct-inheritance.svg
Informazioni sull'immagine

Inheritance diagram

Due specializzazioni sono forniti dalla libreria standard
Original:
Two specializations are provided by the standard library
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Defined in header <locale>
std::numpunct<char>
fornisce equivalenti delle "C" la scelta della lingua
Original:
provides equivalents of the "C" locale preferences
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std::numpunct<wchar_t>
fornisce equivalenti caratteri estesi delle "C" la scelta della lingua
Original:
provides wide character equivalents of the "C" locale preferences
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Indice

[modifica] Membri tipi

Membro tipo
Original:
Member type
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Definition
char_type charT
string_type std::basic_string<charT>

[modifica] Membri funzioni

Template:cpp/locale/numpunct/dsc truenameTemplate:cpp/locale/numpunct/dsc falsename
costruisce un nuovo aspetto numpunct
Original:
constructs a new numpunct facet
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(membro pubblico funzione) [edit]
distrugge un aspetto numpunct
Original:
destructs a numpunct facet
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(protetto funzione membro) [edit]
Invoca do_decimal_point
Original:
invokes do_decimal_point
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(membro pubblico funzione) [edit]
Invoca do_thousands_sep
Original:
invokes do_thousands_sep
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(membro pubblico funzione) [edit]
Invoca do_grouping
Original:
invokes do_grouping
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(membro pubblico funzione) [edit]

[modifica] Protetto funzioni membro

Template:cpp/locale/numpunct/dsc do truenameTemplate:cpp/locale/numpunct/dsc do falsename
fornisce il carattere da utilizzare come separatore decimale
Original:
provides the character to use as decimal point
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(virtuale protetto funzione membro) [edit]
fornisce il carattere da utilizzare come separatore delle migliaia
Original:
provides the character to use as thousands separator
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(virtuale protetto funzione membro) [edit]
[virtuale]
fornisce il numero di cifre tra ogni coppia di migliaia separatori
Original:
provides the numbers of digits between each pair of thousands separators
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(virtuale protetto funzione membro) [edit]

[modifica] Membri oggetti

static std::locale::id id
' Id del locale
Original:
id of the locale
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(membro oggetto pubblico)

[modifica] Esempio

Il seguente esempio modifica le rappresentazioni di stringa di true e false
Original:
The following example changes the string representations of true and false
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#include <iostream>
#include <locale>
 
struct french_bool : std::numpunct<char> {
    string_type do_truename() const { return "oui"; }
    string_type do_falsename() const { return "non"; }
};
 
int main()
{
    std::cout << "default locale: "
              << std::boolalpha << true << ", " << false << '\n';
    std::cout.imbue(std::locale(std::cout.getloc(), new french_bool()));
    std::cout << "locale with modified numpunct: "
              << std::boolalpha << true << ", " << false << '\n';
}

Output:

default locale: true, false
locale with modified numpunct: oui, non

[modifica] Vedi anche

crea un aspetto numpunct per le impostazioni internazionali di nome
Original:
creates a numpunct facet for the named locale
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(classe template)