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std::bad_alloc

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bad_alloc
bad_array_new_length(C++11)
nothrow_t
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nothrow
 
std::bad_alloc
Member-Funktionen
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Member functions
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bad_alloc::bad_alloc
Geerbt von 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">Zuordnungsfunktionen

</div> to report failure to allocate storage.

cpp/error/exceptionstd-bad alloc-inheritance.svg
Über dieses Bild

Inheritance diagram

Inhaltsverzeichnis

[Bearbeiten] Member-Funktionen

constructs the bad_alloc object
(öffentliche Elementfunktion)
replaces a bad_alloc object
(öffentliche Elementfunktion)
kehrt erklärende String
Original:
returns explanatory string
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(öffentliche Elementfunktion)

Inherited from std::exception

Member functions

[virtuell]
zerstört sich die Ausnahme-Objekt
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destructs the exception object
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(virtuellen öffentlichen Member-Funktion of std::exception) [edit]
[virtuell]
gibt einen erläuternden String
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returns an explanatory string
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(virtuellen öffentlichen Member-Funktion of std::exception) [edit]

[Bearbeiten] 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

[Bearbeiten] Siehe auch

Zuordnungsfunktionen
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allocation functions
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(Funktion) [edit]