std::bad_alloc

 

C++

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Gli operatori relazionali Original: Relational operators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

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swap

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Gestione della memoria dinamica

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Allocatori Original: Allocators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
allocator
allocator_traits (C++11)
allocator_arg_t (C++11)
allocator_arg (C++11)
uses_allocator (C++11)
scoped_allocator_adaptor (C++11)
Non inizializzata stoccaggio Original: Uninitialized storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
uninitialized_copy
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shared_ptr (C++11)
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enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
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declare_reachable (C++11)
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malloc calloc	realloc free

 

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operator new operator new[]

operator delete operator delete[]

get_new_handler (C++11)

set_new_handler

Classi Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bad_alloc

bad_array_new_length (C++11)

nothrow_t

Tipi Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

new_handler

Oggetti Original: Objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

nothrow

 

std::bad_alloc

Membri funzioni Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bad_alloc::bad_alloc

Ereditato da std::exception Original: Inherited from std::exception The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

exception::~exception

exception::what

 

Elemento definito nell'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

Original:

allocation functions

The text has been machine-translated via [http://translate.google.com Google Translate].
You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.

</div> to report failure to allocate storage.

Inheritance diagram

Membri funzioni

(costruttore)	constructs the bad_alloc object (metodo pubblico)
operator=	replaces a bad_alloc object (metodo pubblico)
what	restituisce stringa esplicativa 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. (metodo pubblico)

Inherited from std::exception

Member functions

(destructor) [virtuale]	distrugge l'oggetto eccezione 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. (metodo pubblico virtuale)
what [virtuale]	restituisce una stringa esplicativa 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. (metodo pubblico virtuale)

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

Vedi anche

operator new operator new[]	allocazione funzioni Original: allocation functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)