• d-bugmail puremagic.com (34/34) Apr 05 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7841

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7841

           Summary: Better error message for wrong template argument with
                    ref
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: diagnostic
          Severity: minor
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



This is correct D2 code, and it gives no error messages:

void foo(T)(const ref T[] a) {}
void bar(in int[] b) {
    foo(b);
}
void main() {}



This is wrong D2 code (I have replaced "const ref" with "ref"):


void foo(T)(ref T[] a) {}
void bar(in int[] b) {
    foo(b);
}
void main() {}


DMD 2.059 gives this error message:

temp.d(1): Error: template temp.foo(T) cannot deduce template function from
argument types !()(const(int[]))

In this case I'd like a better error message.

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