Heya. I'm working on a simple units-of-measure implementation in
DMD 2.066.0, and it doesn't seem to like the signature of my '*'
operator below. I'm afraid I don't understand what the error
description is trying to tell me. Here's a reduced case:
public struct UnitDef(string unitString) {
// Error: "specialization not allowed for deduced parameter N"
auto opBinary(string op, UT : UnitDef!N, string N)(UT rhs) if
(op == "*") {
return UnitDef!(unitString ~ " " ~ N)();
}
}
enum ft = UnitDef!"ft"();
enum s = UnitDef!"s"();
pragma(msg, typeof(ft*s));
I've tried the same code in DPaste, and it compiles just fine.
Can anyone shed some light on what I may be doing wrong? I
always seem to get bitten when working with template arguments,
so it's probably just me.
