Re: Exception specifications unfortunate, and what about their future?
In article
<a7a665ad-87da-4319-9fd6-1e1c7fcbd7c4@v5g2000prm.googlegroups.com>,
Eugene Gershnik <gershnik@gmail.com> wrote:
where emitted_by is a compile-time expression giving a typelist of
types that an expression can throw.
Why is this typelist any better in practice than not having exception
specifications? I just don't see people writing a TMP to make sure that
they have handled every possible exception.
Assuming something like static_throw(emitted_by(...) syntax above this
task becomes rather trivial (I think).
It looks like I need to specify my program twice. Even with just a
simple templated variable, all my code will have to look like:
template<typename T>
struct Foo
{
T t;
void DoSomethingThatUsedToBeSimple()
emitted_by(static_cast<bool>(t); ++t)
{ if (t) ++t; }
};
That is one heck of a programming burden.
--
Nevin ":-)" Liber <mailto:nevin@eviloverlord.com> 773 961-1620
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