Espaces de noms
Variantes

    isdigit

    De cppreference.com
    < c | string | byte

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    <metanoindex/>

     
    C
     
    Bibliothèque cordes
     
    Chaînes d'octets à zéro terminal
    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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    La manipulation de chaînes
    Original:
    String manipulation
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    strcpy
    strncpy
    strcat
    strncat
    strxfrm
    Examen chaîne
    Original:
    String examination
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    Manipulation de la mémoire
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    Memory manipulation
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    memchr
    memcmp
    memset
    memcpy
    memmove
    Divers
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    Miscellaneous
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    strerror
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <ctype.h>
    int isdigit( int ch );
    Vérifie si le caractère donné est un caractère numérique (0123456789) .
    Original:
    Checks if the given character is a numeric character (0123456789).
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    Paramètres

    ch -
    caractère
    Original:
    character
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    Retourne la valeur

    Valeur non nulle (true) si le caractère est un caractère numérique, 0 (false) autrement .
    Original:
    Non-zero value (true) if the character is a numeric character, 0 (false) otherwise.
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    Voir aussi
    vérifie si un caractère large est un chiffre
    Original:
    checks if a wide character is a digit
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    (fonction) [edit]
    C++ documentation for isdigit
    ASCII values
    (hex)     		characters

    iscntrl
    iswcntrl

    isprint
    iswprint

    isspace
    iswspace

    isblank
    iswblank

    isgraph
    iswgraph

    ispunct
    iswpunct

    isalnum
    iswalnum

    isalpha
    iswalpha

    isupper
    iswupper

    islower
    iswlower

    isdigit
    iswdigit

    isxdigit
    iswxdigit

    0 - 8 0x00-0x08 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 ≠0 0 0 ≠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