On 05/01/2011 08:04 AM, Dmitry Olshansky wrote:
On 01.05.2011 18:30, Andrej Mitrovic wrote:
I'm not sure how to use those wrappers though. Maybe I'm just doing it
wrong:
http://codepad.org/eHIdhasc
But it seems these wrappers have some problems, the docs say about the
interfaces:
Limitations:
These interfaces are not capable of forwarding ref access to elements.
Infiniteness of the wrapped range is not propagated.
Length is not propagated in the case of non-random access ranges.
Well, this compiles, you just need to pick suitable type of range
'interface', that's the subtle thingie:
http://codepad.org/uE0nIwbk
To make it more convenient to other, I paste Dmitry Olshansky's code:
import std.stdio;
import std.range;
import core.thread;
import std.random;
enum BufferSize = 10;
struct Work
{
private float[BufferSize] _buffer;
RandomAccessInfinite!(float) buffer;
this(T)(T unused)
{
_buffer[] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
buffer = inputRangeObject(cycle(_buffer[]));
}
void setNewRange(size_t min, size_t max)
{
buffer = inputRangeObject(cycle(_buffer[min..max]));
}
}
void main(){}
I also paste the compilation output:
Line 6: enum declaration is invalid
Line 6: Declaration expected, not '='
Line 13: semicolon expected following function declaration
Line 13: Declaration expected, not '('
Line 17: no identifier for declarator buffer
Line 24: unrecognized declaration
Limitations are caused by bug, that is going to get fixed eventually ;)
Ali
