[Issue 5903] New: Overloading template functions with typeof() parameter type fails.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5903

           Summary: Overloading template functions with typeof() parameter
                    type fails.
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Mac OS X
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: kennytm at gmail.com


--- Comment #0 from kennytm at gmail.com 2011-04-28 12:18:38 PDT ---
Test case:

---------------------------------------------------
static assert(is(int == typeof(0)));

void p()(int a) { pragma(msg, "OK(p)"); }
void p()() { pragma(msg, "Err(p)"); }

void r(R=typeof(0))(R a) { pragma(msg, "OK(r)"); }
void r()() { pragma(msg, "Err(r)"); }

void s()(typeof(0) a) { pragma(msg, "OK(s)"); }

void t(typeof(0) a) { }
void t() { }

void q()(typeof(0) a) { pragma(msg, "OK(q)"); }
void q()() { pragma(msg, "Err(q)"); }

void main() {
    p!()(5);    // without typeof() is ok
    r!()(5);    // put that typeof() elsewhere is ok
    s!()(5);    // no overloading is ok
    t(5);       // no template is ok
    q!()(5);    // Error
}
---------------------------------------------------
OK(p)
OK(r)
OK(s)
x.d(22): Error: template x.q() does not match any function template declaration
x.d(22): Error: template x.q() cannot deduce template function from argument
types !()(int)
x.d(22): Error: template instance errors instantiating template
---------------------------------------------------

Probably the same as issue 4413, except it affects more than typeof(this).

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