Re: overring binary

[rikki cattermole via Digitalmars-d-learn]

On 08/04/2017 7:46 AM, Jethro wrote:

I have a custom type and I'm trying to do things like

x~1 and 1~x.

I can get x~1 no problem by overriding the op "~" but how to I get 1~x
to convert 1 in to typeof(x)? instead of x in to typeof(1) so to speak?

I really want D to realize that 1~x is suppose to use ~ of x, not 1.

struct Foo {
        int x;

        Foo opBinaryRight(string op)(int y) {
                static if (op == "~") {
                        return Foo(x + y);
                } else static assert(0, "not implemented");
        }
}

void main() {
        import std.stdio;       
        writeln(1 ~ Foo(2));
}