December 26, 2010 [Issue 5376] New: writeln doesn't print immutable lazy sequences | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=5376 Summary: writeln doesn't print immutable lazy sequences Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Severity: enhancement Priority: P2 Component: Phobos AssignedTo: nobody@puremagic.com ReportedBy: bearophile_hugs@eml.cc --- Comment #0 from bearophile_hugs@eml.cc 2010-12-26 02:05:18 PST --- import std.stdio, std.algorithm; void main() { const(int[]) arr1 = [1, 2, 3]; auto sequence1 = map!q{ -a }(arr1); writeln(sequence1); const sequence2 = map!q{ -a }(arr1); writeln(sequence2); immutable(int[]) arr2 = [1, 2, 3]; immutable sequence3 = map!q{ -a }(arr2); writeln(sequence3); } DMD 2.051 prints: [-1, -2, -3] const(Map!(result,const(int[]))) immutable(Map!(result,immutable(int[]))) But I'd like it to print the contents of the second and third lazy sequences too, like (note the semicolons, very useful to tell apart arrays from lazy sequences, see bug 3813 for the rationale): [-1; -2; -3] [-1; -2; -3] [-1; -2; -3] Or maybe something like: [-1; -2; -3] const([-1; -2; -3]) immutable([-1; -2; -3]) But note that this is currently a syntax error: void main() { auto a = const([1, 2, 3]); } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
December 26, 2010 [Issue 5376] writeln doesn't print immutable lazy sequences | ||||
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Posted in reply to bearophile_hugs@eml.cc | http://d.puremagic.com/issues/show_bug.cgi?id=5376 Simen Kjaeraas <simen.kjaras@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |simen.kjaras@gmail.com --- Comment #1 from Simen Kjaeraas <simen.kjaras@gmail.com> 2010-12-26 04:05:14 PST --- This is the same old problem of ranges not supporting tail-const or tail-immutable. I've filed that as a separate issue - http://d.puremagic.com/issues/show_bug.cgi?id=5377 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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