fix underflow in vec swap_remove #16203
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Can you add a test for this as well? |
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@alexcrichton oh of course. Is this test sufficient, or should we add more test cases for the rest of swap_remove? |
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Testing just |
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@huonw: would that not be the same problem for index = length = uint::MAX? Or are you suggesting using CheckedAdd? Although I supposed length = uint::MAX is already bordering on madness. |
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fixes #16200