On Sunday, 21 October 2012 at 20:42:08 UTC, cal wrote:
On Sunday, 21 October 2012 at 20:34:51 UTC, ref2401 wrote:
what should i do to make my binary operation commutative?
You can overload opBinaryRight:
MyClass opBinaryRight(string op: "+")(MyClass rhs)
{
if (rhs is null)
{
return null;
}
MyClass result = new MyClass(value + rhs.value);
return result;
}
http://dlang.org/operatoroverloading.html
in the following case
auto v5 = v1 + v2;
there will be compile time error:
overloads pure @safe MyClass(MyClass rhs) and pure @safe
MyClass(MyClass lhs) both match argument list for opBinary
