http://d.puremagic.com/issues/show_bug.cgi?id=3894
Summary: std.range.Stride!R requires R.front() and R.back() to
return by reference
Product: D
Version: 2.041
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: nob...@puremagic.com
ReportedBy: bugzi...@kyllingen.net
--- Comment #0 from Lars T. Kyllingstad <bugzi...@kyllingen.net> 2010-03-08
03:58:32 PST ---
Quoting Mihail Strashun on the digitalmars.D.learn newsgroup:
---
Following simple program fails to compile with latest DMD 2.041 (In fact it
fails to compile with any dmd2 version i have tried):
"test.d"
> import std.stdio;
> import std.range;
> import std.algorithm;
>
> int main()
> {
> auto test = stride( iota(0,10,1) , 2 );
> return 0;
> }
Output:
[m...@mistwork d]$ dmd -run test.d
/usr/include/d/std/range.d(716): Error: this._input.front() is not an lvalue
/usr/include/d/std/range.d(724): Error: this._input.back() is not an lvalue
---
The problem is that Stride.front() and Stride.back() are defined to return by
reference, which is not the case for all ranges.
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