Why are Partial Functions so prevalent in Prelude?

[atravers]

Like I responded in that thread: this is not new or unique to the head and tail warnings.

…I’ll rephrase my previous statement:

@atravers

…merely upgrading GHC alone to or past 9.8 (with the [additional] partiality warnings for head and tail) can now cause [new] problems.

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@Helgard

I just wish the aforementioned partial functions either forced the user to take either a parsing or validating approach or were more clear in their unsafe nature.

…therein lies another problem: what if the data you’re intending to parse or validate is from a source outside the program?