◐ Shell
clean mode source ↗

std::iswspace - cppreference.com

Da cppreference.com.

Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

Click here for the English version of this page

<metanoindex/>

<tbody> </tbody>

Elemento definito nell'header

<cwctype>

int iswspace( wint_t ch );

Controlla se il carattere in larga è uno spazio bianco, cioè o spazio (0x20), form feed (0x0c), avanzamento riga (0x0a), di ritorno a capo (0x0d), tabulazione orizzontale (0x09), tabulazione verticale (0x0b) o gli spazi vuoti carattere specifico con i parametri locali.

Original:

Checks if the given wide character is a whitespace character, i.e. either space (0x20), form feed (0x0c), line feed (0x0a), carriage return (0x0d), horizontal tab (0x09), vertical tab (0x0b) or any whitespace character specific to the current locale.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Parametri

ch -

carattere esteso

Original:

wide character

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

Valore diverso da zero (true) se il personaggio è un ampio spazio bianco, 0 (false) altrimenti.

Original:

Non-zero value (true) if the wide character is a whitespace character, 0 (false) otherwise.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Esempio

Viene illustrato l'utilizzo di iswspace () con diverse impostazioni internazionali

Original:

Demonstrates the use of iswspace() with different locales

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

#include <iostream>
#include <clocale>
#include <cwctype>
void try_with(wchar_t c, const char* loc)
{
    std::setlocale(LC_ALL, loc);
    std::wcout << "isspace('" << c << "') in " << loc << " locale returned "
               << std::boolalpha << (bool)std::iswspace(c) << '\n';
}
int main()
{
    wchar_t EM_SPACE = L'\u2003'; // Unicode character 'EM SPACE'
    try_with(EM_SPACE, "C");
    try_with(EM_SPACE, "en_US.UTF8");
}

Output: 

isspace(' ') in C locale returned false
isspace(' ') in en_US.UTF8 locale returned true

Vedi anche

controlla se un personaggio è classificato come spazi da un locale

Original:

checks if a character is classified as whitespace by a locale

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.


(funzione di modello) [modifica]

Verifica se un carattere è un carattere di spazio

Original:

checks if a character is a space character

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.


(funzione) [modifica]

C documentation for iswspace

ASCII values
(hex) 		characters

iscntrl
iswcntrl

isprint
iswprint

isspace
iswspace

isblank
iswblank

isgraph
iswgraph

ispunct
iswpunct

isalnum
iswalnum

isalpha
iswalpha

isupper
iswupper

islower
iswlower

isdigit
iswdigit

isxdigit
iswxdigit

0 - 8 0x00-0x08 control codes (NUL, etc.) ≠0 0 0 0 0 0 0 0 0 0 0 0
9 0x09 tab (\t) ≠0 0 ≠0 ≠0 0 0 0 0 0 0 0 0
10 - 13 0x0A-0x0D whitespaces (\n,\v,\f,\r) ≠0 0 ≠0 0 0 0 0 0 0 0 0 0
14 - 31 0x0E-0x1F control codes ≠0 0 0 0 0 0 0 0 0 0 0 0
32 0x20 space 0 ≠0 ≠0 ≠0 0 0 0 0 0 0 0 0
33 - 47 0x21-0x2F !"#$%&'()*+,-./ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
48 - 57 0x30-0x39 0123456789 0 ≠0 0 0 ≠0 0 ≠0 0 0 0 ≠0 ≠0
58 - 64 0x3a-0x40 :;<=>?@ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
65 - 70 0x41-0x46 ABCDEF 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 ≠0
71 - 90 0x47-0x5A GHIJKLMNOPQRSTUVWXYZ 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 0
91 - 96 0x5B-0x60 [\]^_` 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
97 -102 0x61-0x66 abcdef 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 ≠0
103-122 0x67-0x7A ghijklmnopqrstuvwxyz 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 0
123-126 0x7B-0x7E {|}~ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
127 0x7F backspace character (DEL) ≠0 0 0 0 0 0 0 0 0 0 0 0