digitalmars.D.bugs - [Issue 926] New: Implicit conversion from Derived[] to Base[]
- d-bugmail puremagic.com (25/25) Feb 03 2007 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (9/15) Apr 05 2007 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (21/21) Feb 24 2009 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (12/12) Jan 08 2011 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (12/12) Jan 08 2011 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (12/12) Jan 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (13/13) Jan 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (20/23) Jan 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (17/20) Jan 30 2012 http://d.puremagic.com/issues/show_bug.cgi?id=926
- d-bugmail puremagic.com (11/12) Jan 30 2012 http://d.puremagic.com/issues/show_bug.cgi?id=926
http://d.puremagic.com/issues/show_bug.cgi?id=926 Summary: Implicit conversion from Derived[] to Base[] Product: D Version: unspecified Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: DMD AssignedTo: bugzilla digitalmars.com ReportedBy: csantander619 gmail.com In http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D&article_id=47590, Kan noted that this was again allowed: class A {} class B : A {} void main() { B [] b; A [] a = b; } I don't know if the docs mention it, but it seems to have been re-allowed out of the blue. --
Feb 03 2007
http://d.puremagic.com/issues/show_bug.cgi?id=926 thomas-dloop kuehne.cn changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID http://www.digitalmars.com/d/arrays.htmlA dynamic array T[] can be implicitly converted to one of the following: * U[] * void[] Where U is a base class of T.--
Apr 05 2007
http://d.puremagic.com/issues/show_bug.cgi?id=926 smjg iname.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |smjg iname.com Status|RESOLVED |REOPENED Component|DMD |www.digitalmars.com Resolution|INVALID | Summary|Implicit conversion from |Revival of implicit |Derived[] to Base[] |conversion from Derived[] to | |Base[] not noted in | |changelog So the bug is that either: (a) It was disallowed in 0.73 according to the changelog, but the spec itself not updated. The 'bug' that it didn't behave according to spec was subsequently fixed, but Walter completely forgot about the time when the anomaly was introduced. (b) It was disallowed in 0.73, the spec updated, and then the reversion both in the spec and in the compiler was inadvertently left out of the changelog. --
Feb 24 2009
http://d.puremagic.com/issues/show_bug.cgi?id=926 Andrei Alexandrescu <andrei metalanguage.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P2 |P5 CC| |andrei metalanguage.com Version|unspecified |D2 AssignedTo|nobody puremagic.com |bugzilla digitalmars.com Severity|normal |critical -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 08 2011
http://d.puremagic.com/issues/show_bug.cgi?id=926 Stewart Gordon <smjg iname.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 |P2 Version|D2 |unspecified Severity|critical |normal The version, priority and severity changes just made make no sense at all. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 08 2011
http://d.puremagic.com/issues/show_bug.cgi?id=926 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Version|unspecified |D1 Severity|normal |enhancement 02:10:38 PST --- This is D1 only. D2 does not allow it. The D1 spec allows it, and changing it would be an enhancement. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 29 2012
http://d.puremagic.com/issues/show_bug.cgi?id=926 Stewart Gordon <smjg iname.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|accepts-invalid | Severity|enhancement |normal The D1 spec allows what? The spec and the changelog to contradict each other? In which DMD version was this misfeature revived, anyway? -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 29 2012
http://d.puremagic.com/issues/show_bug.cgi?id=926 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution| |WONTFIX 10:29:25 PST ---The D1 spec allows what?It allows implict conversion of an array of derived classes to an array of base classes. Thomas quoted the relevant verbage.The spec and the changelog to contradict each other?What matters is what the spec says and what the compiler does now. If someone wants to go through the compiler/spec diffs from years ago to see when things changed, that's fine and I'll fold in changelog changes if they present them, but I've got a lot of current issues to address, and historical spelunking is off the radar.In which DMD version was this misfeature revived, anyway?I don't know. I agree it is a misfeature, but I am loathe to break existing D1 code at this point, so I believe it should stay as it is. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 29 2012
http://d.puremagic.com/issues/show_bug.cgi?id=926 Stewart Gordon <smjg iname.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|WONTFIX | AssignedTo|bugzilla digitalmars.com |smjg iname.comWhat matters is what the spec says and what the compiler does now. If someone wants to go through the compiler/spec diffs from years ago to see when things changed, that's fine and I'll fold in changelog changes if they present them,The standard meaning of WONTFIX is "this issue is to stay as it is" not "I personally can't be bothered/don't have time to deal with it". The way to indicate the latter is to leave it open and reassign it to nobody - this shows that it's free for anybody to take the issue and work on it. Here's an idea: I'll have a look at it myself over the next few days. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 30 2012
http://d.puremagic.com/issues/show_bug.cgi?id=926 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugzilla digitalmars.com 11:27:08 PST ---Here's an idea: I'll have a look at it myself over the next few days.I'll be happy to merge in any changes you suggest. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 30 2012