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[Issue 2144] New: 'is' is defined to be the same as '==' for non-class and non-array types, but does not call opEquals
Jun 09, 2008
d-bugmail
Jun 09, 2008
Robert Fraser
Jun 22, 2008
d-bugmail
June 09, 2008
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d-bugmail
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http://d.puremagic.com/issues/show_bug.cgi?id=2144

           Summary: 'is' is defined to be the same as '==' for non-class and
                    non-array types, but does not call opEquals
           Product: D
           Version: 1.027
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Keywords: spec
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla@digitalmars.com
        ReportedBy: jarrett.billingsley@gmail.com


Exactly what the topic says.  So if you have two structs "a" and "b", "a is b" will perform a "primitive" bit-for-bit equality test, while "a == b" will call overloaded opEquals.

Either the spec should mention this, or this is a bug.


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June 09, 2008
Gravatar of Robert FraserPosted by Robert Fraser
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Robert Fraser
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d-bugmail@puremagic.com wrote:
> http://d.puremagic.com/issues/show_bug.cgi?id=2144
> 
>            Summary: 'is' is defined to be the same as '==' for non-class and
>                     non-array types, but does not call opEquals
>            Product: D
>            Version: 1.027
>           Platform: PC
>         OS/Version: Windows
>             Status: NEW
>           Keywords: spec
>           Severity: normal
>           Priority: P2
>          Component: DMD
>         AssignedTo: bugzilla@digitalmars.com
>         ReportedBy: jarrett.billingsley@gmail.com
> 
> 
> Exactly what the topic says.  So if you have two structs "a" and "b", "a is b"
> will perform a "primitive" bit-for-bit equality test, while "a == b" will call
> overloaded opEquals.
> 
> Either the spec should mention this, or this is a bug.

I like the feature; so IMO it should be speced.
June 22, 2008
Gravatar of d-bugmailPosted by d-bugmail
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http://d.puremagic.com/issues/show_bug.cgi?id=2144


bugzilla@digitalmars.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Comment #1 from bugzilla@digitalmars.com  2008-06-22 18:59 -------
Fixed dmd 1.031 and 2.015


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