std::isupper
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| Elemento definito nell'header <cctype>
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| int isupper( int ch ); |
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Controlla se il carattere è dato un carattere maiuscolo in base alla localizzazione corrente C. Nel predefinita locale "C",
isupper restituisce true solo per le lettere maiuscole (ABCDEFGHIJKLMNOPQRSTUVWXYZ).Original:
Checks if the given character is an uppercase character according to the current C locale. In the default "C" locale,
isupper returns true only for the uppercase letters (ABCDEFGHIJKLMNOPQRSTUVWXYZ).The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Se
isupper restituisce true, è garantito che iscntrl, isdigit, ispunct e isspace false ritorno per lo stesso carattere nella stessa zona C.Original:
If
isupper returns true, it is guaranteed that iscntrl, isdigit, ispunct, and isspace return false for the same character in the same C locale.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Indice |
[modifica] 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. |
[modifica] Valore di ritorno
Valore diverso da zero (true) se il carattere è una lettera maiuscola,
0 (false) altrimenti.Original:
Non-zero value (true) if the character is an uppercase letter,
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.
You can help to correct and verify the translation. Click here for instructions.
[modifica] Esempio
#include <iostream> #include <cctype> #include <clocale> int main() { char c = '\xc6'; // letter Æ in ISO-8859-1 std::cout << "isupper(\'\\xc6\', default C locale) returned " << std::boolalpha << (bool)std::isupper(c) << '\n'; std::setlocale(LC_ALL, "en_GB.iso88591"); std::cout << "isupper(\'\\xc6\', ISO-8859-1 locale) returned " << std::boolalpha << (bool)std::isupper(c) << '\n'; }
Output:
isupper('\xc6', default C locale) returned false
isupper('\xc6', ISO-8859-1 locale) returned true[modifica] Vedi anche
| Verifica se un carattere è classificato come lettere maiuscole da un locale Original: checks if a character is classified as uppercase 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) | |
| Verifica se un carattere esteso è un carattere maiuscolo Original: checks if a wide character is an uppercase character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione) | |
| C documentation for isupper
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| ASCII values (hex) |
characters |
isupper |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 - 8 | 0x00-0x08
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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
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≠0
|
0
|
0
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���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
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