RFR: 8333639: ubsan: cppVtables.cpp:81:55: runtime error: index 14 out of bounds for type 'long int [1]' [v2]

[Kim Barrett]

On Fri, 14 Jun 2024 17:20:58 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> I've updated my implementation to use `_cloned_vtable[1]` again with an address computation. Please note that we're calling it "Pseudo flexible array member", not VLA. I had also described it as "flexible array member" emulation in my previous version.

gcc doc calls these VLAs, but C99 calls them FAM.  FAM is fine; I'm just used to the older VLA terminology.

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PR Comment: https://git.openjdk.org/jdk/pull/19623#issuecomment-2169025569