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Just use sanitizers properly. You are done. Everyone doing anything half-professional with C++ has been doing that for years already. And no you don't have to run sanitizers in production.

That being said: It is inconvenient and it is stacking yet another set of tools and workflow that you have to integrate into your development practice, which is not so nice.

Also, profiles are a better idea anyway. Also, I wish people would stop calling things 'safe'. Ain't nothing 'safe'. There are only various degrees of safety.