Roland Dreier 1eb591e85c Fix deallocating never-allocated storage in vector.merge() ...

If merge() is called on an empty vector, then priv_merge_in_new_buffer() will
call deallocate() with size 0 on the old (not-yet-allocated) vector storage.
This violates the Allocator requirement that the pointer passed to deallocate()
must have come from a call to allocate() with the same size.

Fix this by checking old_cap against 0, and also add a unit test for this bug.

2019-02-23 18:46:06 -08:00

9.1 KiB

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