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digitalmars.D.bugs - [Issue 1055] New: union forward reference "overlapping initialization" error

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1055

           Summary: union forward reference "overlapping initialization"
                    error
           Product: D
           Version: 1.009
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: wbaxter gmail.com


New with DMD 1.009.
This gives the error
: struct overlapbug.Z overlapping initialization for struct Z.bar

struct Z {
    int bar=1;
    union { FooT foo; }
}
struct FooT{ size_t offset=0;}


But it works if you move "int bar=1" after the union.
And it also works if you move the declaration of FooT before Z.


Also this is one of those error messages that lacks an "Error" prefix in the
message.


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Mar 11 2007
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1055


smjg iname.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |smjg iname.com
           Keywords|                            |rejects-valid




------- Comment #1 from smjg iname.com  2007-03-12 11:50 -------
Do you feel that every error message should have an "Error" prefix?  Any
particular reason?  Personally, I think they're just as good or better without
it.  Moreover, even if we do have it, it should be part of the error output
mechanism itself rather than of each error message.  Making it so would be an
enhancement request, separate from this bug.


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Mar 12 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1055





------- Comment #2 from wbaxter gmail.com  2007-03-12 17:33 -------
(In reply to comment #1)

 Do you feel that every error message should have an "Error" prefix?  Any
 particular reason?  


There at least needs to be some easily greppable way to distinguish between the
first line of an error and the continuation lines.  One easy way to do that is
to prefix every error with a sigil like "Error" "Warning" or "Information".

This makes it possible for IDEs to automatically take you to errors in your
source code and the lines they are on.  And if they're all prefixed with
"Error" vs "SomethingElse" then the IDE can also easily prioritize them so that
it takes you to errors first and Warnings etc later (or never).


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Mar 12 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
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------- Comment #3 from smjg iname.com  2007-03-12 21:21 -------
(In reply to comment #2)

 This makes it possible for IDEs to automatically take you to errors 
 in your source code and the lines they are on.


TextPad manages without it.  What's more, if only all filename/lineno
references relevant to a single error are at the beginning of their lines, then
it can pinpoint all these lines - whereas if it relied on seeing the word
"Error", it probably wouldn't.

But it took me a while to get it to work on warning messages, with their
peculiar format.  I recall that I managed to do it in the end but seem to have
lost the regexp to do it.


 And if they're all prefixed with "Error" vs "SomethingElse" then 
 the IDE can also easily prioritize them so that it takes you to 
 errors first and Warnings etc later (or never).


Good point.  But still, it would depend on the IDE whether it makes any real
difference.


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Mar 12 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1055


thomas-dloop kuehne.cn changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         OS/Version|Windows                     |All




------- Comment #4 from thomas-dloop kuehne.cn  2007-03-29 14:07 -------
Added to DStress as
http://dstress.kuehne.cn/run/f/forward_reference_20_A.d
http://dstress.kuehne.cn/run/f/forward_reference_20_B.d
http://dstress.kuehne.cn/run/f/forward_reference_20_C.d
http://dstress.kuehne.cn/run/f/forward_reference_20_D.d


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Mar 29 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1055


Rainer Schuetze <r.sagitario gmx.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch
                 CC|                            |r.sagitario gmx.de


--- Comment #5 from Rainer Schuetze <r.sagitario gmx.de> 2010-03-27 06:26:03
PDT ---
although #945 seems completely unrelated, the patch there also fixes this issue
including the dstress-tests.

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Mar 27 2010
prev sibling next sibling parent d-bugmail puremagic.com writes:
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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com


--- Comment #6 from Walter Bright <bugzilla digitalmars.com> 2010-05-10
11:49:37 PDT ---
changeset 478

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May 10 2010
prev sibling parent d-bugmail puremagic.com writes:
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Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |clugdbug yahoo.com.au
         Resolution|                            |FIXED


--- Comment #7 from Don <clugdbug yahoo.com.au> 2010-05-18 12:16:02 PDT ---
Fixed DMD1.061 and DMD2.046.

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May 18 2010