| title |
bad_alloc Class | Microsoft Docs |
| ms.custom |
|
| ms.date |
11/04/2016 |
| ms.reviewer |
|
| ms.suite |
|
| ms.technology |
|
| ms.tgt_pltfrm |
|
| ms.topic |
article |
| f1_keywords |
new/std::bad_alloc |
bad_alloc |
|
| dev_langs |
|
| helpviewer_keywords |
|
| ms.assetid |
6429a8e6-5a49-4907-8d56-f4a4ec8131d0 |
| caps.latest.revision |
26 |
| author |
corob-msft |
| ms.author |
corob |
| manager |
ghogen |
| translation.priority.ht |
cs-cz |
de-de |
es-es |
fr-fr |
it-it |
ja-jp |
ko-kr |
pl-pl |
pt-br |
ru-ru |
tr-tr |
zh-cn |
zh-tw |
|
The class describes an exception thrown to indicate that an allocation request did not succeed.
class bad_alloc : public exception {
bad_alloc();
virtual ~bad_alloc();
};
Remarks
The value returned by what is an implementation-defined C string. None of the member functions throw any exceptions.
Header: <new>
Namespace: std
// bad_alloc.cpp
// compile with: /EHsc
#include<new>
#include<iostream>
using namespace std;
int main() {
char* ptr;
try {
ptr = new char[(~unsigned int((int)0)/2) - 1];
delete[] ptr;
}
catch( bad_alloc &ba) {
cout << ba.what( ) << endl;
}
} Header: <new>
exception Class
Thread Safety in the C++ Standard Library