CustomFloat.opBinaryRight

real opBinaryRight(string op, T)(T a) if (  __traits(compiles,  mixin(`a` ~ op ~ `get!real`))  &&
        !__traits(compiles,  mixin(`get!real` ~ op ~ `b`))  &&
        !__traits(compiles,  mixin(`get!real` ~ op ~ `b.get!real`)))

const

ditto