On 8/10/11 10:46 AM, Jacob Carlborg wrote:
On 2011-08-10 17:55, Dmitry Olshansky wrote:
On 10.08.2011 18:54, Jacob Carlborg wrote:
Interesting idea, one problem with it is that I want this:
auto m = match("bleh", "bleh");
writeln(m);
to actually print "bleh", not true
Right now due to a carry over bug from std.regex (interface thing)
writln(m) will just do a stackoverflow, m.hit however works.
No, that won't be any problem:
struct Foo
{
bool b;
alias b this;
}
auto f = Foo();
static assert(is(typeof(f) == Foo));
The above assert passes as expected.
That may be all well, but try writeln on it, what will it print?
Hmm, it doesn't print anything, I think it looks like a bug in writeln.
After some experience with alias this I had to conclude that it's rather
blunt tool, and I'd rather stay away of it.
Actually I like Steven's opCast suggestion, so that it works in
conditionals.
Oh, I didn't know that it would work implicitly in conditionals. Then
I'm happy with opCast :)
That's pretty cool actually because it naturally extends the built-in
approach. When you do e.g. if (pointer) that's really equivalent to if
(cast(bool) pointer) and so on.
Andrei
