std::numpunct
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| Elemento definito nell'header <locale>
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| template< class CharT > class numpunct; |
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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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Inheritance diagram
Due specializzazioni sono forniti dalla libreria standard
Original:
Two specializations are provided by the standard library
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| Definizione nell'header
<locale> | |
| std::numpunct<char> | fornisce equivalenti delle "C" la scelta della lingua
Original: provides equivalents of the "C" locale preferences The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| std::numpunct<wchar_t> | fornisce equivalenti caratteri estesi delle "C" la scelta della lingua
Original: provides wide character equivalents of the "C" locale preferences The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Indice |
[modifica] Membri tipi
| Membro tipo
Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
char_type
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charT
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string_type
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std::basic_string<charT> |
[modifica] Membri funzioni
| costruisce un nuovo aspetto numpunct Original: constructs a new numpunct facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
| distrugge un aspetto numpunct Original: destructs a numpunct facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (protetto funzione membro) | |
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| Invoca do_decimal_point Original: invokes do_decimal_point The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
| Invoca do_thousands_sep Original: invokes do_thousands_sep The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
| Invoca do_grouping Original: invokes do_grouping The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
[modifica] Protetto funzioni membro
| [virtuale] |
fornisce il carattere da utilizzare come separatore decimale Original: provides the character to use as decimal point The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuale protetto funzione membro) |
| [virtuale] |
fornisce il carattere da utilizzare come separatore delle migliaia Original: provides the character to use as thousands separator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuale protetto funzione membro) |
| [virtuale] |
fornisce il numero di cifre tra ogni coppia di migliaia
separatori Original: provides the numbers of digits between each pair of thousands
separators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuale protetto funzione membro) |
[modifica] Membri oggetti
| static std::locale::id id |
' Id del locale Original: id of the locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (attributo 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe template) | |
