[minipci1321]

> 10. has anyone yet found a legitimate use for throwing an `int`?

I use that a lot in constexpr computations -- to stop the compilation, I usually do 'throw __LINE__'.

-- Using a more complex type is not warranted -- there is no catching end in constexpr.

-- And in case the same routine ends up called non-constexpr, it will be easy to identify the place that called 'throw' -- line numbers are unique without additional effort. Just don't put two throws on the same line.

[WalterBright]

That works until you incorporate code that throws errno.