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Now that allocator.resize() is allowed to fail, programs may wish to test code paths that handle resize() failure. The simplest way to do this now is to replace the vtable of the testing allocator with one that uses Allocator.noResize for the 'resize' function pointer. An alternative way to support this testing capability is to augment the FailingAllocator (which is already useful for testing allocation failure scenarios) to intentionally fail on calls to resize(). To do this, add a 'resize_fail_index' parameter to the FailingAllocator that causes resize() to fail after the given number of calls. |
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failing_allocator.zig |