[Issue 10592] New: Regression of overloaded template function

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10592

           Summary: Regression of overloaded template function
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: regression
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: zan77137 at nifty.com


--- Comment #0 from SHOO <zan77137 at nifty.com> 2013-07-10 03:21:17 PDT ---
This code doesn't work in dmd git head master:
--------------
struct A(E)
{
    void put()(const(E)[] data)
    { pragma(msg, "hit 1"); }
    void put()(const(dchar)[] data) if (!is(E == dchar))
    { pragma(msg, "hit 2"); }
    void put(C)(const(C)[] data) if (!is(C == dchar) && !is(E == C))
    { pragma(msg, "hit 3"); }
}

void main()
{
    A!char x;
    x.put("abcde"c); // OK: hit 1
    x.put("abcde"w); // NG: this should hit 3
    x.put("abcde"d); // OK: hit 2
}
--------- RESULT -----------
$ dmd -run main
hit 1
hit 2
main.d(12): Error: template main.A!char.A.put does not match any function
templa
te declaration. Candidates are:
main.d(3):        main.A!char.A.put()(const(E)[] data)
main.d(4):        main.A!char.A.put()(const(dchar)[] data) if (!is(E == dchar))
main.d(5):        main.A!char.A.put(C)(const(C)[] data) if (!is(C == dchar) &&
!
is(E == C))
main.d(12): Error: template main.A!char.A.put()(const(E)[] data) cannot deduce
t
emplate function from argument types !()(immutable(wchar)[])

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