[Issue 12524] New: wrong type with inout const arg and inout return

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=12524

           Summary: wrong type with inout const arg and inout return
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: code at dawg.eu


--- Comment #0 from Martin Nowak <code at dawg.eu> 2014-04-05 03:57:10 PDT ---
cat > bug.d << CODE
inout(int) dup(inout(const(int)) val)
{
    return val;
}

pragma(msg, typeof(dup));

void foo(inout(int))
{
    inout(const(int)) val;
    auto bug = dup(val);
    pragma(msg, typeof(bug));
    static assert(is(typeof(bug) == inout(int)));
}
CODE

dmd -c bug
----
Error: static assert  (is(inout(const(int)) == inout(int))) is false
----

Interestingly enough the type of the function is correct, but the type of the
call expression remains inout(const(int)).

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