std::bad_alloc — cppreference.com

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Déclaré dans l'en-tête `<new>`
`class bad_alloc;`

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

to report failure to allocate storage.

Inheritance diagram

Fonctions membres


(constructeur)	constructs the bad_alloc object (fonction membre publique)

operator=	replaces a bad_alloc object (fonction membre publique)

what	renvoie une chaîne explicative Original: returns explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)

Inherited from std::exception

Member functions


[ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	Détruit l'objet exception Original: destructs the exception object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (function membre virtuelle publique de `std::exception`) [edit]

[ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	retourne une chaîne explicative Original: returns an explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (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

std::bad_alloc — cppreference.com

Fonctions membres

Inherited from std::exception

Member functions

Exemple

Voir aussi