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    std::strtoul, std::strtoull

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    <metanoindex/>

     
    C++
     
    Bibliothque de chanes de caractres
    Chanes zro terminal
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    Null-terminated strings
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    Les chanes d'octets
    Chaines multi-octets
    Les chanes tendues
    Classes
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    Classes
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    basic_string
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    Chanes d'octets zro terminal
    Fonctions
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    Functions
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    Manipulation caractre
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    Character manipulation
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    Conversion aux formats numriques
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    Conversions to numeric formats
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    La manipulation de chanes
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    String manipulation
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    strcpy
    strncpy
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    strxfrm
    Examen chane
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    String examination
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    Manipulation de la mmoire
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    Memory manipulation
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    memchr
    memcmp
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    strerror
     
    <tbody> </tbody>
    Dclar dans l'en-tte <cstdlib>
    unsigned long strtoul( const char *str, char **str_end, int base );
    unsigned long long strtoull( const char *str, char **str_end, int base );
    		 (depuis C++11)
    Interprter une valeur d'entier non sign dans une chane d'octets pointe par str .
    Original:
    Interprets an unsigned integer value in a byte 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) 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.

    Les fonctions dfinit le pointeur point par str_end pour pointer vers le caractre pass le dernier caractre interprt. Si str_end est NULL, il est ignor .
    Original:
    The functions sets the pointer pointed to by str_end to point to the character past the last character interpreted. If str_end is NULL, it is ignored.
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    Paramtres

    str -
    pointeur vers la chane d'octets termine par NULL doit tre interprt
    Original:
    pointer to the null-terminated byte string to be interpreted
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    str_end -
    pointeur vers un pointeur sur caractre .
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    pointer to a pointer to character.
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    base -
    Base de la valeur entire interprt
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    base of the interpreted integer value
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    Retourne la valeur

    Valeur entire correspondant au contenu de str en cas de succs. Si la valeur convertie tombe hors de la plage de type de retour correspondante, une erreur se produit et ULONG_MAX plage ou ULLONG_MAX est retourn. Si aucune conversion peut tre effectue, 0 est retourn .
    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 ULONG_MAX or ULLONG_MAX is returned. If no conversion can be performed, 0 is returned.
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    Exemple

    This section is incomplete
    Reason: no example

    Voir aussi
    convertit une chane d'octets en une valeur entire
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    converts a byte string to an integer value
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    (fonction) [edit]
    convertit une chane d'octets en une valeur entire
    Original:
    converts a byte string to an integer value
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    (fonction) [edit]
    C documentation for strtoul, strtoull
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