On: LLVM Programmer’s Manual

[konstmonst]

You are just using the worng pattern. Use Computation a; Computation b; use(a, b); Then if the computation aborts in b, then computation a will be cleaned up as intended.

[pjc50 → konstmonst]

My second point is that with exceptions you can't guarantee the assignment of two objects, because the assignment operator can throw.

[plorkyeran → pjc50]

This was somewhat of a problem in C++03 because writing a copy assignment operator that can't fail is sometimes impossible, but I have never encountered a scenario where I was unable to make move assignment noexcept.