On Saturday, 3 July 2021 at 17:44:48 UTC, someone wrote:
https://en.wikipedia.org/wiki/Luhn_algorithm#Pseudocode_implementation
That specific function, in Phobos? no. sum modulo 10? That's just some_var%10 in D. The Wikipedia link ends with a link to RosettaCode: https://rosettacode.org/wiki/Luhn_test_of_credit_card_numbers#D... this is a pretty nice RC entry, translating Haskell, C, and SPARK
all into D. Really shows off D's range of expression.