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submitted 10 months ago by irelephant@programming.dev to c/software_gore@programming.dev

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[-] GissaMittJobb@lemmy.ml 3 points 10 months ago

Yes you can. You're vastly underestimating the size of an f64. Give me a concrete example of a money operation that fails with f64 (for normal companies; assuming you aren't a stock exchange or Visa or whatever).

0.1f64 + 0.2f64 != 0.3f64

Why not?

Encoding in assumptions about a fixed amount of supported currencies in a system is broadly speaking not a good idea

[-] FizzyOrange@programming.dev 0 points 10 months ago

0.1f64 + 0.2f64 != 0.3f64

It does if you round it to the nearest penny.

Encoding in assumptions about a fixed amount of supported currencies in a system is broadly speaking not a good idea

Most sensible programming languages allow enums to be non-exhaustive.

this post was submitted on 26 Jul 2025

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