[angersock]

On the general topic of how much we can rely on compilers, even using old and well-understood languages (C++), consult Mike Acton:

http://www.slideshare.net/cellperformance/gdc15-code-clinic

https://www.youtube.com/watch?v=rX0ItVEVjHc

[Dewie]

C++ is well-understood? I don't get that impression from people who know it.

[golergka]

C++ is well-understood to not be well-understood.

[frozenport]

Indeed, the language is well understood but code often isn't because its easy to write UB.