std::isprint<div class="t-tr-text">(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Localizzazioni libreria

Impostazioni internazionali e sfaccettature Original: Locales and facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
locale
use_facet	has_facet
Carattere classificazione Original: Character classification The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversioni Original: Conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Facet categoria classi di base Original: Facet category base classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_base codecvt_base messages_base	time_base money_base
Facet categorie Original: Facet categories The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Locale specifici aspetti Original: Locale-specific facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_byname ctype_byname<char> codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Codice di conversione sfaccettature Original: Code conversion facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale Original: C locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
setlocale localeconv lconv	LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY LC_NUMERIC LC_TIME

 

Defined in header <locale>
template< class charT > bool isprint( charT ch, const locale& loc );

Controlla se il carattere dato classificata come un carattere stampabile (compreso lo spazio) di aspetto std::ctype impostazioni internazionali di data.

Original:

Checks if the given character classified as a printable character (including space) by the given locale's std::ctype facet.

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Parametri

ch	-	carattere Original: character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
loc	-	locale Original: locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

true Restituisce se il personaggio è classificato come stampa, false altrimenti.

Original:

Returns true if the character is classified as printable, false otherwise.

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Possibile implementazione

template< class charT > bool isprint( charT ch, const std::locale& loc ) { return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::print, ch); }

Esempio

Viene illustrato l'utilizzo di isprint () con diverse impostazioni internazionali (OS-specifico) .

Original:

Demonstrates the use of isprint() with different locales (OS-specific).

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#include <iostream>
#include <locale>
int main()
{
    const wchar_t c = L'\u2122'; // trademark sign
 
    std::locale loc1("C");
    std::cout << "isprint('™', C locale) returned "
               << std::boolalpha << std::isprint(c, loc1) << '\n';
 
    std::locale loc2("en_US.UTF-8");
    std::cout << "isprint('™', Unicode locale) returned "
              << std::boolalpha << std::isprint(c, loc2) << '\n';
}

Output:

isprint('™', C locale) returned false
isprint('™', Unicode locale) returned true

Vedi anche

isprint	Verifica se un carattere è un carattere di stampa Original: checks if a character is a printing character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
iswprint	Verifica se un carattere esteso è un carattere di stampa Original: checks if a wide character is a printing character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)