Extend the existing tests for `f32` and `f64` with versions that include
`f16`'s new printing and parsing implementations.
Co-authored-by: Speedy_Lex <alex.ciocildau@gmail.com>
A lot of the magic constants can be turned into expressions. This
reduces some code duplication.
Additionally, add traits to make these operations fully generic. This
will make it easier to support `f16` and `f128`.
The previous commit renamed `Decimal` to `DecimalSeq`. Now, rename the
type that represents a decimal floating point number to be `Decimal`.
Additionally, add some tests for internal behavior.
This module currently contains two decimal types, `Decimal` and
`Number`. These names don't provide a whole lot of insight into what
exactly they are, and `Number` is actually the one that is more like an
expected `Decimal` type.
In accordance with this, rename the existing `Decimal` to `DecimalSeq`.
This highlights that it contains a sequence of decimal digits, rather
than representing a base-10 floating point (decimal) number.
Additionally, add some tests to validate internal behavior.
