This really shouldn't be an error -- the internal representation of the number shouldn't leak out like this.
The good news is that you rarely want to add a double and a bigint -- it usually doesn't make mathematical sense. But the compiler / runtime should try harder to do what you asked.
The good news is that you rarely want to add a double and a bigint -- it usually doesn't make mathematical sense. But the compiler / runtime should try harder to do what you asked.