std::bad_alloc

 

C++

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Динамическое управление памятью

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

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piecewise_construct (C++11)

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forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

Динамическое управление памятью

Низкий уровень управления памятью
Распределители 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)
Неинициализированные хранения 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
Умные указатели 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 (устарело)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Поддержка сборки мусора 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)
Разное 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 Library 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

 

Низкий уровень управления памятью

Функции 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

Классы 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

Типы 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

Член функций 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

Унаследованные от 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

 

Заголовочный файл <new>
class bad_alloc;

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

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.

Диаграмма наследования

Член функций

(constructor)	constructs the bad_alloc object (public функция-член)
operator=	replaces a bad_alloc object (public функция-член)
what	возвращает пояснительной строкой 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. (public функция-член)

Унаследован от std::exception

Member functions

(destructor) [virtual]	разрушает объект исключения 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. (virtual public std::exception функция-член)
what [virtual]	возвращает пояснительной строкой 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. (virtual public std::exception функция-член)

Пример

#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';
    }
}

Вывод:

Allocation failed: std::bad_alloc

См. также

operator new operator new[]	Распределение функций 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. (функция)