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wcstol, wcstoll

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< c‎ | string‎ | wide

 
 
 
Chaînes à zéro terminal de large
Fonctions
Original:
Functions
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Manipulation caractère
Original:
Character manipulation
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Conversion aux formats numériques
Original:
Conversions to numeric formats
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wcstol
wcstoll
wcstoul
wcstoull
La manipulation de chaînes
Original:
String manipulation
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La manipulation des tableaux
Original:
Array manipulation
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wmemcpy
wmemmove
wmemcmp
wmemchr
wmemset
 
Defined in header <cwchar>
long      wcstol( const wchar_t* str, wchar_t** str_end, int base );
long long wcstoll( const wchar_t* str, wchar_t** str_end, int base );
Interpréter une valeur entière dans une chaîne large pointé par 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:

  • (en option) plus or minus sign
  • (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 définit le pointeur pointé par str_end pour pointer vers le caractère large passé le dernier caractère interprété. Si str_end est NULL, il est ignoré .
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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Sommaire

[modifier] Paramètres

str -
pointeur vers la chaîne se terminant par null large pour être interprété
Original:
pointer to the null-terminated wide string to be interpreted
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str_end -
pointeur vers un pointeur sur caractère large
Original:
pointer to a pointer to wide character
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base -
Base de la valeur entière interprété
Original:
base of the interpreted integer value
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[modifier] Retourne la valeur

Valeur entière correspondant au contenu de str en cas de succès. Si la valeur convertie tombe hors de la plage de type de retour correspondante, une erreur se produit et LONG_MAX gamme, LONG_MIN, LLONG_MAX ou LLONG_MIN est retourné. Si aucune conversion peut être effectuée, 0 est retourné .
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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[modifier] Exemple

[modifier] Voir aussi

convertit une chaîne de large pour une valeur d'entier non signé
Original:
converts a wide string to an unsigned integer value
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(fonction) [edit]
C++ documentation for wcstol, wcstoll