[Issue 4099] New: Inconsistent behaviour of ++/-- when mixing opUnary and 'alias this'.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4099

           Summary: Inconsistent behaviour of ++/-- when mixing opUnary
                    and 'alias this'.
           Product: D
           Version: unspecified
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: a3471210 at owlpic.com


--- Comment #0 from a3471210 at owlpic.com 2010-04-17 05:13:08 PDT ---
In the following example, ++x calls opUnary while x++ is performed on x
directly:

struct X
{
    int x;
    alias x this;

    typeof(this) opUnary (string operator) ()
    {
        writeln ("operator called");
        return this;
    }
}
unittest
{    
    X x;
    ++x; //operator called
    auto y = x++; //BUG! (alias this used. returns int)
}

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