[Issue 5551] New: opUnary-opBinary conflict

d-bugmail at puremagic.com d-bugmail at puremagic.com
Tue Feb 8 17:06:59 PST 2011


http://d.puremagic.com/issues/show_bug.cgi?id=5551

           Summary: opUnary-opBinary conflict
           Product: D
           Version: D2
          Platform: All
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: bearophile_hugs at eml.cc


--- Comment #0 from bearophile_hugs at eml.cc 2011-02-08 17:04:36 PST ---
I think this is correct code (trouble originally found by Charles McAnany):

struct Foo {
    Foo opUnary(string op:"++")() {
        return this;
    }
    Foo opBinary(string op)(int y) {
        return this;
    }
}
void main() {
    auto f = Foo();
    f++;
}


But DMD 2.051 shows the errors:
test.d(11): Error: template test.Foo.opBinary(string op) does not match any
function template declaration
test.d(11): Error: template test.Foo.opBinary(string op) cannot deduce template
function from argument types !()()

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