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Bug 2892 – Appending U[] to T[] where U : T but U != T yields corrupted results

Status: RESOLVED
Resolution: FIXED
Severity: major
Priority: P2
Component: dmd
Product: D
Version: D2
Platform: x86
OS: Windows
Creation time: 2009-04-24T20:25:00Z
Last change time: 2015-06-09T01:26:25Z
Keywords: wrong-code
Assigned to: nobody
Creator: dsimcha

Comments

Comment #0 by dsimcha — 2009-04-24T20:25:19Z

import std.stdio; void main() { uint[] foo = [1,2,3,4,5]; ubyte[] bar = [1,2,3,4]; foo ~= bar; writeln(foo); // 1 2 3 4 5 67305985 foo.length = 5; ulong[] baz = [1,2,3,4]; foo ~= baz; writeln(foo); // 1 2 3 4 5 1 0 2 0 3 0 4 0 }

Comment #1 by clugdbug — 2009-04-29T10:31:42Z

*** Bug 2910 has been marked as a duplicate of this bug. ***

Comment #2 by dsimcha — 2009-04-29T15:19:13Z

*** Bug 2912 has been marked as a duplicate of this bug. ***

Comment #3 by dsimcha — 2009-04-29T15:26:05Z

Also, this doesn't happen only for array literals. Here, I .dup the literals to make sure they're allocated like "normal" arrays and it still happens. import std.stdio; void main() { uint[] foo = [1U,2,3,4,5].dup; ubyte[] bar = [cast(ubyte) 1,2,3,4].dup; foo ~= bar; writeln(foo); // 1 2 3 4 5 67305985 foo.length = 5; ulong[] baz = [1UL,2,3,4].dup; foo ~= baz; writeln(foo); // 1 2 3 4 5 1 0 2 0 3 0 4 0 }

Comment #4 by clugdbug — 2009-04-29T23:32:31Z

Could this be a regression?

Comment #5 by dsimcha — 2009-12-05T18:27:04Z

Fixed a long time ago.