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Bug 16145 – enumerate can't work with ref foreach

Status: NEW
Severity: major
Priority: P2
Component: phobos
Product: D
Version: D2
Platform: All
OS: All
Creation time: 2016-06-09T09:31:09Z
Last change time: 2024-12-01T16:27:04Z
Assigned to: No Owner
Creator: John Colvin

Comments

Comment #0 by john.loughran.colvin — 2016-06-09T09:31:09Z

enumerate works by returning a tuple of index and element, so e.g. foreach(i, ref el; r.enumerate) el = 3; compiles fine but will not do anything to el.

Comment #1 by greeenify — 2016-12-27T14:10:43Z

This is due to `front` creating a new tuple on every call: https://github.com/dlang/phobos/blob/master/std/range/package.d#L7740 Hence not even "refRanging" it works :/

Comment #2 by robert.schadek — 2024-12-01T16:27:04Z

THIS ISSUE HAS BEEN MOVED TO GITHUB https://github.com/dlang/phobos/issues/9685 DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB