std::stoul, std::stoull — cppreference.com

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Déclaré dans l'en-tête `<string>`
`unsigned long stoul( const std::string& str, size_t *pos = 0, int base = 10 );`	(1)	(depuis C++11)
`unsigned long long stoull( const std::string& str, size_t *pos = 0, int base = 10 );`	(2)	(depuis C++11)

Interpréter une valeur d'entier non signé dans le str chaîne .

Original:

Interprets an unsigned integer value in the string 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) unsigned integer number representation and converts them to an integer value. The valid unsigned integer value consists of the following parts: None

(en option) prefix (0) indicating octal base (applies only when the base is 8)
(en option) 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.

L'indice du premier caractère non converti est stocké dans pos. Si NULL est passé comme pos, il est ignoré .

Original:

The index of the first unconverted character is stored in pos. If NULL is passed as pos, it is ignored.

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Paramètres

str	-	la chaîne à convertir Original: the string to convert The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pos	-	l'adresse d'un nombre entier pour stocker l'index du premier caractère non converti Original: address of an integer to store the index of the first unconverted character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
base	-	le nombre de base Original: the number base The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Retourne la valeur

La chaîne convertie dans le type spécifié entier non signé .

Original:

The string converted to the specified unsigned integer type.

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Exceptions

std::invalid_argument si aucune conversion peut être effectuée
Original:
std::invalid_argument if no conversion could be performed
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std::out_of_range si la valeur convertie tomberait hors de la plage du type de résultat .
Original:
std::out_of_range if the converted value would fall out of the range of the result type.
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Voir aussi


	convertit une chaîne en un entier signé Original: converts a string to an signed integer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

	convertit une chaîne en un nombre réel (fonction) [edit]