[Issue 8969] New: is(T == __parameters) is undocumented

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8969

           Summary: is(T == __parameters) is undocumented
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: andrej.mitrovich at gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrovich at gmail.com> 2012-11-06 10:20:54 PST ---
std.traits ParameterIdentifierTuple and ParameterDefaultValueTuple use this
trick to extract the parameters:

static if (is(typeof(func) PT == __parameters))
{
}

This __parameters feature is not documented.

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