• d-bugmail puremagic.com (42/43) Dec 02 2010 http://d.puremagic.com/issues/show_bug.cgi?id=5310
• d-bugmail puremagic.com (10/10) Jan 09 2011 http://d.puremagic.com/issues/show_bug.cgi?id=5310
• d-bugmail puremagic.com (10/10) Feb 24 2013 http://d.puremagic.com/issues/show_bug.cgi?id=5310
• d-bugmail puremagic.com (17/17) Feb 24 2013 http://d.puremagic.com/issues/show_bug.cgi?id=5310

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=5310

           Summary: Variant == const(Variant) doesn't compile
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: clugdbug yahoo.com.au



import std.variant;

void foo(const Variant a)
{
    Variant b;
    assert (a == b);
}

---
dmd test0

test0.d(12): Error: template std.variant.VariantN!(maxSize).VariantN.opEquals(T
) does not match any function template declaration
test0.d(12): Error: template std.variant.VariantN!(maxSize).VariantN.opEquals(T
) cannot deduce template function from argument types !()(VariantN!(maxSize))

And if you change the assert into:  assert(b==a);
you get:
c:\dmd\windows\bin\..\..\src\phobos\std\variant.d(499): Error: static assert 
"A
ssigning Variant objects from const Variant objects is currently not
supported."

c:\dmd\windows\bin\..\..\src\phobos\std\variant.d(481):        instantiated
from
 here: opAssign!(const(VariantN!(maxSize)))
c:\dmd\windows\bin\..\..\src\phobos\std\variant.d(737):        instantiated
from
 here: __ctor!(const(VariantN!(maxSize)))
test0.d(12):        instantiated from here: opEquals!(const(VariantN!(maxSize))
)
----

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=5310


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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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=5310


Alex Rønne Petersen <alex lycus.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |alex lycus.org
         Resolution|                            |FIXED


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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=5310


Alex Rønne Petersen <alex lycus.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |alex lycus.org
         Resolution|                            |FIXED



Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/7b03c1eda59cd89739e4164235e43522269b009b
issue 5310

https://github.com/D-Programming-Language/phobos/commit/75f578228cd1975995551894ca0717eb19fda0f2


Fix Issue 5310 - Variant == const(Variant) doesn't compile

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