4 ms·

I'm not sure what you mean by "The check cannot be made at compile time, only at run time". Are you talking about a language other than Go? Go is statically typ

I'm not sure what you mean by "The check cannot be made at compile time, only at run time". Are you talking about a language other than Go? Go is statically typed. edit: I've been talking about compile time errors that prevent potentially dangerous implicit casts from happening. I think you're talking about something else.

ori_b 14y ago
If int64 is the default type for int, then any int will be able to contain values not representable as a float64 (you'd need a float80 or float128 to make it work). To safely convert, a run-time check will be needed.