Summary: Out parameter with default value as null compiling
                    unit test fails.
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD

--- Comment #0 from Jacob Carlborg <> 2011-03-05 03:53:46 PST ---
The following code fails to compile:

void isEmail (out void* v = null) {}


With the error message:

test.d(1): Error: null is not an lvalue

This only happens when I compile with -unittest. The parameter has to be an out
parameter, a default parameter and the default value has to be null. The type
of the parameter doesn't matter as long as "null" is a valid value for the

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