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digitalmars.D - std.algorithm.map + std.algorithm.joiner = broken forward range

reply "H. S. Teoh" <hsteoh quickfur.ath.cx> writes:
Code:
	import std.algorithm;
	import std.range;
	import std.stdio;

	void main() {
	    auto x = [[1],[2],[3]];
	    auto yy = x.map!"a".joiner;

	    assert(isForwardRange!(typeof(yy)));
	    writeln(yy.save);
	    writeln(yy);
	}

Output:

	[]
	[1, 2, 3]

:-(

That is to say, yy.save didn't save the range at all!


T
-- 
"The number you have dialed is imaginary. Please rotate your phone 90
degrees and try again."
Oct 09 2012
parent "jerro" <a a.com> writes:
On Wednesday, 10 October 2012 at 02:11:49 UTC, H. S. Teoh wrote:
 Code:
 	import std.algorithm;
 	import std.range;
 	import std.stdio;

 	void main() {
 	    auto x = [[1],[2],[3]];
 	    auto yy = x.map!"a".joiner;

 	    assert(isForwardRange!(typeof(yy)));
 	    writeln(yy.save);
 	    writeln(yy);
 	}

 Output:

 	[]
 	[1, 2, 3]

 :-(

 That is to say, yy.save didn't save the range at all!


 T

It happens without map too.
Oct 09 2012