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beebs1

std::bad_alloc

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beebs1    398
Hiya, Does anyone know how to throw so that a std::bad_alloc exception is generated? throw std::bad_alloc; does not seem to work. I just need to test it's exception handler. Thanks for any help :)

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ZQJ    496
The following works fine here:


#include <new>
#include <iostream>

int main()
{
try {
throw std::bad_alloc();
} catch (std::bad_alloc&) {
std::cout << "bad_alloc caught\n";
}
}

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CTar    1134
Quote:
Original post by KulSeran
if you really need to just do a test, call something like
char *x = new char[unsigned long(-1)];


What makes you think that'll work? It may work in many cases, but I don't see why it have to throw a std::bad_alloc. Also if you have used set_new_handler it could result in your new_handler being called.

As long as you have included the "new" header you should be able to throw std::bad_alloc normally.

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beebs1    398
Thanks for your replies, throw std::bad_alloc(); worked fine. I omitted the brackets for some reason, which is why it wouldn't compile. I just needed to test that particular code path.

Thanks again.

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