On Monday, 23 July 2012 at 19:57:42 UTC, Jacob Carlborg wrote:
constraint BidirectionalRange (Range) : ForwardRange!(Range)
{
void popBack ();
@property E back ();
@property E front ();
}
[snip]
I know that others have had similar ideas.
I remember this was discussed recently and Don Clugston suggested
something like this:
if there is no match for:
void foo(T)(T t) if( !conditionA!T ){}
void foo(T)(T t) if( conditionA!T && conditionB!T ){}
the error will be:
template foo does not match any function template, constraints
values are:
conditionA: true
conditionB: false
(note that `conditionA` is listed only once)
And given who Don is, I'm pretty sure he have an idea how to
implement this.
