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    std::bad_alloc

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    <metanoindex/>

     
    C++
     
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    La gestion dynamique de la mémoire
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    std::bad_alloc
    Les fonctions membres
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    bad_alloc::bad_alloc
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    <tbody> </tbody>
    Déclaré dans l'en-tête <new>
    class bad_alloc;

    std::bad_alloc is the type of the object thrown as exceptions by the

    fonctions d'allocation
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    allocation functions
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    to report failure to allocate storage.

    cpp/error/exception

    Inheritance diagram

    Fonctions membres

    		 constructs the bad_alloc object
    (fonction membre publique)
    		replaces a bad_alloc object
    (fonction membre publique)
    renvoie une chaîne explicative
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    returns explanatory string
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    (fonction membre publique)

    Inherited from std::exception

    Member functions

    [
    virtuel
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    virtual
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    ]
    Détruit l'objet exception
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    destructs the exception object
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    (function membre virtuelle publique de std::exception) [edit]
    [
    virtuel
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    virtual
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    ]
    retourne une chaîne explicative
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    returns an explanatory string
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    (function membre virtuelle publique de std::exception) [edit]

    Exemple

    #include <iostream>
#include <new>

int main()
{
    try {
        while (true) {
            new int[100000000ul];
        }
    } catch (const std::bad_alloc& e) {
        std::cout << "Allocation failed: " << e.what() << '\n';
    }
}

    Résultat : 

    Allocation failed: std::bad_alloc

    Voir aussi
    fonctions d'allocation
    Original:
    allocation functions
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    (fonction) [edit]