<pre class="prettyprint"><code>Obj *op = new Obj; Obj *op2 = op; delete op; delete op2; // What happens here? </code></pre> <p>What's the worst that can happen when you accidentally double delete? Does it matter? Is the compiler going to throw an error?</p>

What happens in a double delete?

Obj *op = new Obj; Obj *op2 = op; delete op; delete op2; // What happens here?

What's the worst that can happen when you accidentally double delete? Does it matter? Is the compiler going to throw an error?

577

asked Feb 07 '12 01:02

It causes undefined behaviour. Anything can happen. In practice, a runtime crash is probably what I'd expect.

170

answered Sep 19 '22 19:09

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