10-Dec-2014 11:20, Kagamin пишет:
On Tuesday, 9 December 2014 at 18:07:16 UTC, H. S. Teoh via
Digitalmars-d wrote:
what is more interesting is "was this failure caused by permission
error?".
And what if it does?
You would create thousands of types and their cartesian products just to
check for one of them?
There is no need for cartesian products.
E.g.
interface ConversionException { }
interface Overflow : ConversionException {}
interface Underflow : ConversionException {}
...
Basically enum in DIP 33 expends to a set of dervied interfaces.
Anyhow enums do not allow one to catch based on them which already makes
them highly unusable.
--
Dmitry Olshansky
