← Back to index | Original Bugzilla link

Bug 9867 – Map opIndex is not usable with immutable types

Status: RESOLVED
Resolution: INVALID
Severity: normal
Priority: P2
Component: phobos
Product: D
Version: D2
Platform: All
OS: All
Creation time: 2013-04-03T11:49:00Z
Last change time: 2016-08-27T23:25:38Z
Assigned to: nobody
Creator: andrej.mitrovich

Comments

Comment #0 by andrej.mitrovich — 2013-04-03T11:49:33Z

import std.algorithm; private immutable string[12] longMonthNames = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ]; immutable shortMonthNames = map!(a => a[0..3])(longMonthNames[]); // L24 void main() { string jan = shortMonthNames[0]; } test.d(24): Error: mutable method test.MapResult!(__lambda2, immutable(char[])[]).MapResult.opIndex is not callable using a immutable object

Comment #1 by andrej.mitrovich — 2013-04-03T11:51:08Z

It seems like most methods in MapResult should be inout (or const? I never know..), except maybe popFront.

Comment #2 by andrej.mitrovich — 2016-08-27T23:25:38Z

Haha what?? I thought I could make a range immutable and consume it?!