[Issue 3379] New: [tdpl] Parameter names not visible in the if clause of a template

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3379

           Summary: [tdpl] Parameter names not visible in the if clause of
                    a template
           Product: D
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: andrei at metalanguage.com


--- Comment #0 from Andrei Alexandrescu <andrei at metalanguage.com> 2009-10-08 14:25:57 PDT ---
This code does not compile:

T1[] find(T1, T2)(T1[] longer, T2[] shorter)
   if (is(typeof(longer[0 .. 1] == shorter) : bool))
{
   while (longer.length >= shorter.length) {
      if (longer[0 .. shorter.length] == shorter) break;
      longer = longer[1 .. $];
   }
   return longer;
}

unittest {
   double[] d1 = [ 6.0, 1.5, 2.4, 3 ];
   double[] d2 = [ 1.5, 2.4 ];
   assert(find(d1, d2) == d1[1 .. $]);
}

(I believe I'd submitted this bug already. Please don't mark as duplicate so
all TDPL-related errors stay together.)

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