On Sat, 04 Jun 2011 20:27:16 +0200, Andrej Mitrovic wrote:
This is my #1 problem with ranges right now:
import std.range;
int[3] a = [1, 2, 3];
shared range = cycle(a[]); // nope
void main()
{
foo();
}
void foo()
{
// do something with range
}
test.d(6): Error:
On 6/6/11, Jonathan M Davis jmdavisp...@gmx.com wrote:
On the whole, I believe that ranges were generally intended to be processed
and then tossed, which is usually what happens with iterators..
That's what I thought but wasn't sure if that was really the case. I
don't really have a solid C++
Andrej Mitrovic wrote:
On 6/6/11, Jonathan M Davis jmdavisp...@gmx.com wrote:
So, anything you do on your own could be polymorphic, but as soon as you
get ranges from Phobos, you lose the polymorphism.
Yeah, I've noticed that. I wouldn't want to loose the ability to call
into
Ah the good old typeof. It's nice to have language sugar like this
that save the day. :)
On 2011-06-05 09:43, Andrej Mitrovic wrote:
Ah the good old typeof. It's nice to have language sugar like this
that save the day. :)
I really don't think that Andrei was thinking that people would need to save
ranges when he started internalizing all of the range types in std.range and
On 6/6/11, Jonathan M Davis jmdavisp...@gmx.com wrote:
I really don't think that Andrei was thinking that people would need to save
ranges when he started internalizing all of the range types in std.range and
std.algorithm.
There are some classes like InputRangeObject defined in std.range that
On 2011-06-05 17:19, Andrej Mitrovic wrote:
On 6/6/11, Jonathan M Davis jmdavisp...@gmx.com wrote:
I really don't think that Andrei was thinking that people would need to
save ranges when he started internalizing all of the range types in
std.range and std.algorithm.
There are some
Yeah I'm referring to polymorphism.
If I want to provide some sort of interface for my users that let them
build any type of range at runtime, or even a range of ranges, then
there's polymorphism involved. Other than polymorphism there's no
other way a function can take or return a generic range
On 2011-06-05 17:47, Andrej Mitrovic wrote:
Yeah I'm referring to polymorphism.
If I want to provide some sort of interface for my users that let them
build any type of range at runtime, or even a range of ranges, then
there's polymorphism involved. Other than polymorphism there's no
other
This is my #1 problem with ranges right now:
import std.range;
int[3] a = [1, 2, 3];
shared range = cycle(a[]); // nope
void main()
{
foo();
}
void foo()
{
// do something with range
}
test.d(6): Error: static variable a cannot be read at compile time
test.d(6): Error: cannot
Ok, this works:
shared Cycle!(int[]) range;
So, problem solved? Sometimes I feel like I should just e-mail myself
and then give myself the answer instead of posting here. LOL.
Problem not so much solved.
What if I want to keep a stride range? There's no Stride struct
defined in std.range, stride() is defined as an auto function and
hides the type inside the function itself.
How I can store such an object in module scope? This won't work:
auto var = stride([1, 2, 3],
On 2011-06-04 18:01, Andrej Mitrovic wrote:
Problem not so much solved.
What if I want to keep a stride range? There's no Stride struct
defined in std.range, stride() is defined as an auto function and
hides the type inside the function itself.
How I can store such an object in module
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