On Wednesday, 18 July 2012 at 04:54:51 UTC, Jonathan M Davis
wrote:
On Wednesday, July 18, 2012 06:27:28 Mike L. wrote:
Thanks for the reply. Not sure how I missed it there.
Interesting
that the compiler has to be made aware of a concept that I had
thought was only supposed to be part of phobos. Would it be
possible to implement it in std.range using the new UFCs?
You can do
for(; !range.empty; range.popFront())
{
auto e = range.front;
}
without the compiler doing anything at all. But if you want
for(e; range)
{}
you need a way in the language for the compiler to translate
that into the
above. UFCS has nothing to do with it. All UFCS does is take
a.b(c, d) and
make it b(a, c, d).
- Jonathan M Davi
If UFCS worked on operators, you would be able to make ranges
without any compiler support.
int opApply(T)(T Range) if(isInputRange!T) {
// Stuff.
}
