[swift-evolution] Expanded support for numeric types in stdlib?

[Austin Zheng]

Hi all,

There are quite a few programming languages that provide support for
numeric types apart from the customary floating-point and fixed-width
integer types. Prominent examples of additional numeric types include
rational numbers, arbitrary-width integer types, and fixed-point numbers.
Many of these numeric types are applicable to a wide variety of problem
domains.

Swift seems like it would be a good fit for stdlib implementation of some
of these numeric types. Structs and value semantics, literal
initialization, and operator overloading would allow such types to be
treated as first-class citizens. Is the community amenable to such a
proposal, which would entail the data structures themselves, arithmetic
operations, and interoperation between different numeric types to form a
numerical tower of sorts?

Best regards,
Austin
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