On Fri, 17 Jan 2025 at 22:22, Christopher Kormanyos
Question:
I've noticed that this:
1.23456789098787237982792742932938492382342382342002934932_df
Compiles, although it truncates the value to 1.234568. Would it make sense to somehow tell the user "hey, this literal is too long"
It would absolutely make sense, but then you would need the same thing to happen for float, double and long double in the Standard, which isn't going to happen.
So Decimal follows suit.
Hm, would you? If I understood correctly, decimals are suited for exact calculations, while standard floating point values are intended for approximate calculations. In this line of thought, I think it would make sense for decimals to be much more strict with losing precision than floats. That is, rounding will almost always happen with a float literal, while rounding with a decimal literal is more likely to be a programmer error (I'd say). Of course, you know your users and the field better than me.