std::wcstol, std::wcstoll

 

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)

 

Stringhe libreria

Null-stringhe terminate Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Byte stringhe

Multibyte stringhe

Stringhe larghe

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

basic_string

char_traits

 

Stringhe larghe null-terminated

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Carattere manipolazione Original: Character manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iswalnum iswalpha iswlower iswupper iswdigit iswxdigit iswblank (C++11) wctype iswctype	iswcntrl iswgraph iswspace iswprint iswpunct towlower towupper wctrans towctrans
Le conversioni in formati numerici Original: Conversions to numeric formats The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
wcstol wcstoll wcstoul wcstoull	wcstof wcstod wcstold
Della gestione delle stringhe Original: String manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
wcslen wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp	wcsxfrm wcschr wcsrchr wcspbrk wcsspn wcscspn wcsstr wcstok
Matrice manipolazione Original: Array manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
wmemcpy
wmemmove
wmemcmp
wmemchr
wmemset

 

Elemento definito nell'header <cwchar>
long      wcstol(constwchar_t* str, wchar_t** str_end, int base );
longlong wcstoll(constwchar_t* str, wchar_t** str_end, int base );		(dal C++11)

Interpreta un valore intero in una stringa larga puntata da str.

Original:

Interprets an integer value in a wide string pointed to by str.

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Function discards any whitespace characters until first non-whitespace character is found. Then it takes as many characters as possible to form a valid base-n (where n=base) integer number representation and converts them to an integer value. The valid integer value consists of the following parts:

• (opzionale) plus or minus sign
• (opzionale) prefix (0) indicating octal base (applies only when the base is 8)
• (opzionale) prefix (0x or 0X) indicating hexadecimal base (applies only when the base is 16)
• a sequence of digits

The set of valid digits for base-2 integer is 01, for base-3 integer is 012, and so on. For bases larger than 10, valid digits include alphabetic characters, starting from Aa for base-11 integer, to Zz for base-36 integer. The case of the characters is ignored.

Le funzioni imposta il puntatore puntato da str_end per puntare al carattere esteso oltre l'ultimo carattere interpretato. Se str_end è NULL, viene ignorato.

Original:

The functions sets the pointer pointed to by str_end to point to the wide character past the last character interpreted. If str_end is NULL, it is ignored.

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Parametri

str	-	puntatore alla stringa con terminazione null grande per essere interpretato Original: pointer to the null-terminated wide string to be interpreted The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
str_end	-	puntatore a un puntatore a carattere esteso Original: pointer to a pointer to wide character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
base	-	Base del valore intero interpretato Original: base of the interpreted integer value 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 intero che corrisponde al contenuto di str in caso di successo. Se il valore convertito cade fuori dalla portata del corrispondente tipo di ritorno, errore di campo si verifica e LONG_MAX, LONG_MIN, LLONG_MAX o LLONG_MIN viene restituito. Se la conversione non può essere eseguita, viene restituito ​0​.

Original:

Integer value corresponding to the contents of str on success. If the converted value falls out of range of corresponding return type, range error occurs and LONG_MAX, LONG_MIN, LLONG_MAX or LLONG_MIN is returned. If no conversion can be performed, ​0​ is returned.

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Vedi anche

wcstoul wcstoull	converte una stringa in largo per un valore intero senza segno Original: converts a wide string to an unsigned integer value 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 wcstol, wcstoll