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October 27, 2009 [Issue 3444] New: foreach(i, elem; range) should work | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=3444 Summary: foreach(i, elem; range) should work Product: D Version: 2.035 Platform: Other OS/Version: Windows Status: NEW Severity: enhancement Priority: P2 Component: DMD AssignedTo: nobody@puremagic.com ReportedBy: dsimcha@yahoo.com --- Comment #0 from David Simcha <dsimcha@yahoo.com> 2009-10-26 18:38:59 PDT --- Currently, one cannot do a foreach statement over a range that also gives the index. This is inconsistent with arrays. I'm not sure if it's the best fix, but at least a temporary fix is to mix this thing into all ranges: template CountForeach(I) { int opApply(int delegate(ref I, ref typeof(this.front())) dg) { I index = 0; int result; foreach(elem; this) { result = dg(index, elem); if(result) { break; } ++index; } return result; } } Usage: struct SomeRange { SomeType front() { return something; } void popFront() { doStuff(); } bool empty() { return amIEmpty(); } mixin CountForeach!size_t; } void main() { SomeRange someRange; foreach(elem; someRange) {} // Uses range interface directly. foreach(i, elem; someRange) {} // Uses the mixin; } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
December 10, 2009 [Issue 3444] foreach(i, elem; range) should work | ||||
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Posted in reply to David Simcha | http://d.puremagic.com/issues/show_bug.cgi?id=3444 David Simcha <dsimcha@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #1 from David Simcha <dsimcha@yahoo.com> 2009-12-09 20:03:17 PST --- Fixed. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
December 10, 2009 [Issue 3444] foreach(i, elem; range) should work | ||||
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Posted in reply to David Simcha | http://d.puremagic.com/issues/show_bug.cgi?id=3444 David Simcha <dsimcha@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|FIXED | --- Comment #2 from David Simcha <dsimcha@yahoo.com> 2009-12-09 20:37:20 PST --- Argh, accidentally marked the wrong bug fixed. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
June 10, 2010 [Issue 3444] foreach(i, elem; range) should work | ||||
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Posted in reply to David Simcha | http://d.puremagic.com/issues/show_bug.cgi?id=3444 --- Comment #3 from Shin Fujishiro <rsinfu@gmail.com> 2010-06-09 23:25:08 PDT --- Created an attachment (id=659) patch against dmd r526 Implemented foreach(i, e; r) and foreach_reverse(i, e; r). For reverse iteration with index, r must have a length property. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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