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digitalmars.D.bugs - [Issue 2282] New: Struct copy-constructor should call opAssign

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282

           Summary: Struct copy-constructor should call opAssign
           Product: D
           Version: unspecified
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: 2korden gmail.com


opAssign isn't called upon copy-construction.

I think that the following:

struct Test {
    void opAssign(Test other) {
       // ...
    }
    // ...
}

Test t1;
Test t2 = t1;

should be translated into the following:

Test t1;
Test t2 = void;
t2 = t1;


--
Aug 14 2008
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282


Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|wrong-code                  |
                 CC|                            |clugdbug yahoo.com.au
           Severity|normal                      |enhancement





This behaviour is by design. I'm marking it as an enhancement, but it should
probably be closed as invalid. It's definitely not a wrong-code bug.

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Aug 04 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282


Andrei Alexandrescu <andrei metalanguage.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |andrei metalanguage.com
         AssignedTo|nobody puremagic.com        |andrei metalanguage.com


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Oct 11 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282


Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |INVALID



Invalid: use postblit instead.
When the types are identical, this(this) gets called, not opAssign.

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Nov 23 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282




---
In D2, yes, but what about D1?

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Nov 23 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282






 In D2, yes, but what about D1?


The spec is quite clear:

"The assignment operator cannot be overloaded for rvalues that can be
implicitly cast to the lvalue type." (operatoroverloading.html#Assignment).

And when I compile the initial code, I get a compiler error message which is
clear and which is in perfect agreement with the spec:

bug.d(19): Error: function test.Test.opAssign identity assignment operator ove
rload is illegal

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Nov 23 2009
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2282




---
Great, thanks!

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Nov 23 2009