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I have no constructor, and I must initialize

It has been three days. The room is cold and dark, but your screens are blinding. You feel disoriented as you come in and out of dissociative episodes. Now and again, you laugh, to no accompaniment. Why are you here? Was this your fault?

Most of my focus fell on the first two—for the third, I felt satisfied with a hand-wavy explanation of “if T is simple enough, it’ll do component-wise initialization.” The first two are where the danger lies, after all: what if some objects are left uninitialized? Anyway, for a parenthesized initializer, if this elision provision doesn’t apply, constructors are considered as you would expect; if there are none and T is an aggregate class, it’ll do per-element copy-initialization as discussed earlier. You just added six instances of undefined behaviour to your company’s codebase, and now twenty Russian hackers are fighting to pwn your app first.

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