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    getenv

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    <metanoindex/>

     
    C
     
    Services d'appui aux programmes
    La fin du programme
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    Program termination
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    abort
    exit
    quick_exit (C++11)
    _Exit (C++11)
    Communiquer avec l'environnement
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    Communicating with the environment
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    Signaux
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    Signals
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    Types de signaux
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    Signal types
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    SIGABRT
    SIGFPE
    SIGILL
    SIGINT
    SIGSEGV
    SIGTERM
    Non-locales sauts
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    Non-local jumps
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    setjmp
    longjmp
    Types
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    Types
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    jmp_buf
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <stdlib.h>
    const char *getenv( const char *env_var );
    Recherche une variable d'environnement avec env_var nom de l'hôte spécifié par la liste environnement et renvoie des informations qui lui sont associés. L'ensemble des variables d'environnement et les méthodes de l'altérer sont définis par l'implémentation .
    Original:
    Searches for an environmental variable with name env_var in the host-specified environment list and returns information associated with it. The set of environmental variables and methods of altering it are implementation-defined.
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    Paramètres

    env_var -
    chaîne de caractères terminée par NULL identifier le nom de la variable d'environnement qu'il faut chercher
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    null-terminated character string identifying the name of the environmental variable to look for
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    Retourne la valeur

    chaîne de caractères identifiant la valeur de la variable d'environnement ou NULL si la variable ne soit pas trouvé .
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    character string identifying the value of the environmental variable or NULL if such variable is not found.
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    Exemple

    This section is incomplete
    Reason: no example

    Voir aussi

    C++ documentation for getenv