[Issue 21011] New: Variant and tuples by index

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21011

          Issue ID: 21011
           Summary: Variant and tuples by index
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: v.leolui at gmail.com

Test case:
----------------
Variant test = tuple(1,2);
writeln(test[0]);
----------------

errors:

----------------

std.variant.VariantException at std\variant.d(1715): Variant: attempting to use
incompatible types std.typecons.Tuple!(int, int).Tuple
and int
----------------
0x000000013F1292DB in
std.variant.VariantN`20LU.VariantN.handler!(std.typecons.Tuple!(int,
int)).handler at C:\D\dmd2\windows\bin\..\..\src\phobos\std\variant.d(475)
0x000000013F134536 in std.variant.VariantN`20LU.VariantN.opIndex!int.opIndex at
C:\D\dmd2\windows\bin\..\..\src\phobos\std\variant.d(1113)

----------------
https://github.com/dlang/phobos/blob/master/std/variant.d#L475

access by index not working on tuples?
but: writeln(test) - working;

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