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std::bad_alloc

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< cpp‎ | memory‎ | new

 
 
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swap
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Gestione della memoria dinamica
Basso livello di gestione della memoria
Allocatori
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bad_alloc
bad_array_new_length(C++11)
nothrow_t
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nothrow
 
std::bad_alloc
Membri funzioni
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Member functions
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bad_alloc::bad_alloc
Ereditato da std::exception
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Inherited from std::exception
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exception::~exception
exception::what
 
Defined in header <new>
class bad_alloc;

std::bad_alloc is the type of the object thrown as exceptions by the <div class="t-tr-text">allocazione funzioni

</div> to report failure to allocate storage.

cpp/error/exceptionstd-bad alloc-inheritance.svg
Informazioni sull'immagine

Inheritance diagram

Indice

[modifica] Membri funzioni

constructs the bad_alloc object
(membro pubblico funzione)
replaces a bad_alloc object
(membro pubblico funzione)
restituisce stringa esplicativa
Original:
returns explanatory string
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(membro pubblico funzione)

Inherited from std::exception

Member functions

[virtuale]
distrugge l'oggetto eccezione
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destructs the exception object
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(pubblico virtuale membro of std::exception funzione) [edit]
[virtuale]
restituisce una stringa esplicativa
Original:
returns an explanatory string
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(pubblico virtuale membro of std::exception funzione) [edit]

[modifica] Esempio

#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';
    }
}

Output:

Allocation failed: std::bad_alloc

[modifica] Vedi anche

allocazione funzioni
Original:
allocation functions
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(funzione) [edit]