> I wonder how many people worry about supplying clang a file that doesn't end in a new line? That is undefined behaviour It no longer is, since C++11. Check P

> I wonder how many people worry about supplying clang a file that doesn't end in a new line? That is undefined behaviour It no longer is, since C++11. Check Phase 2.2 here: https://en.cppreference.com/w/cpp/language/translation_phases https://en.cppreference.com/w/cpp/language/translation_phase... > clang won't delete your source file, even though it would be perfectly within its rights to. UB allows the execution of the compiled program to wipe your hard drive, but it certainly does not give your compiler that right. I mean, the standard doesn't say what side effects invoking a compiler is allowed to have (because that's out of scope), so none of it can be predicated on UB. (Mandatory mention: https://github.com/munificent/vigil https://github.com/munificent/vigil)