std::bad_alloc

 

C++

Sprache

Concepts

Utilities-Bibliothek

Strings Bibliothek

Container-Bibliothek

Algorithmen-Bibliothek

Iteratoren Bibliothek

Numerik-Bibliothek

Input / Output-Bibliothek

Lokalisierungen Bibliothek

Reguläre Ausdrücke Bibliothek(C++11)

Atomare Operationen Bibliothek(C++11)

Thread Support-Bibliothek(C++11)

 

Utilities-Bibliothek

Typen Unterstützung (basic types, RTTI, type traits)

Dynamische Speicherverwaltung

Fehlerbehandlung

Programm Unterstützung

Variadic Funktionen

Datum und Uhrzeit

Funktionsobjekte

initializer_list (C++11)

bitset

hash (C++11)

Relationale Operatoren

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

Paare und Tupel

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

Swap, forward und move

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

Dynamische Speicherverwaltung

Low-Level-Speicherverwaltung
Zuweiser 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)
Initialisierter Speicher 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
uninitialized_copy_n (C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Intelligente Zeiger Original: Smart pointers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
unique_ptr (C++11)
shared_ptr (C++11)
weak_ptr (C++11)
auto_ptr (veraltet)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Garbage Collection Unterstützung Original: Garbage collection support The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declare_reachable (C++11)
undeclare_reachable (C++11)
declare_no_pointers (C++11)
undeclare_no_pointers (C++11)
pointer_safety (C++11)
get_pointer_safety (C++11)
Verschiedenes Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pointer_traits (C++11)
addressof (C++11)
align (C++11)
C-Bibliothek Original: C Library The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
malloc calloc	realloc free

 

Low-Level-Speicherverwaltung

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

operator new operator new[]

operator delete operator delete[]

get_new_handler (C++11)

set_new_handler

Classes 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

Types 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

Objects 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

Member-Funktionen 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

Geerbt von 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

 

definiert 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">Zuordnungsfunktionen

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

Member-Funktionen

(constructor)	constructs the bad_alloc object (öffentliche Elementfunktion)
operator=	replaces a bad_alloc object (öffentliche Elementfunktion)
what	kehrt erklärende String 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. (öffentliche Elementfunktion)

Inherited from std::exception

Member functions

(destructor) [virtuell]	Zerstört das Ausnahme-Objekt 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. (virtuellen öffentlichen Member-Funktion of std::exception)
what [virtuell]	gibt einen erläuternden String 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. (virtuellen öffentlichen Member-Funktion of std::exception)

Beispiel

#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

Siehe auch

operator new operator new[]	Speicheranforderungsfunktion (Funktion)