On 2018-Jan-18 21:07:19 -0800, Conrad Meyer <c...@freebsd.org> wrote: >The spec says the behavior is undefined; not that the compiler has to >produce a warning or error message. The compiler *does* get to >arbitrarily decide what it wants to do when it encounters UB. It is >wholly free to implement this particular UB with the logical result >and no warning/error.
IMO, the fact that our compiler produces a warning message when it encounters undefined behaviour is A Good Thing. Relying on implementation-specific behaviour leads to brittle code - a compiler update or reusing the code with a different compiler could completely change the behaviour. -- Peter Jeremy
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