[tree-ssa] Fun with exceptions -- opinions needed

[Frank Ch. Eigler]

law wrote:

> [...]  OK.  So think about what happens if "get" throws an exception
> in the statement "i = get (strm.5)".  Right, the side effect of
> assigning a new value to "i" does not happen.

Can someone explain why such a side-effect would be expected?  I
couldn't find a reference in Stroustrup about what is supposed to
happen to the LHS of an assignment interrupted by an exception.

- FChE