From cac7f3e868e98281f9f2b841101b09f02cf664fd Mon Sep 17 00:00:00 2001 From: Anhgelus Morhtuuzh Date: Sat, 13 Sep 2025 00:53:47 +0200 Subject: Ajout du scripts bin_to_hex --- .../scripts/bin_to_hex.exs | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 semestre 3/architecture des ordinateurs/scripts/bin_to_hex.exs (limited to 'semestre 3/architecture des ordinateurs/scripts/bin_to_hex.exs') diff --git a/semestre 3/architecture des ordinateurs/scripts/bin_to_hex.exs b/semestre 3/architecture des ordinateurs/scripts/bin_to_hex.exs new file mode 100644 index 0000000..8d6e629 --- /dev/null +++ b/semestre 3/architecture des ordinateurs/scripts/bin_to_hex.exs @@ -0,0 +1,38 @@ +defmodule Conv do + def bin_to_hex(b) do + bin_to_hex_rec(b, []) + end + + defp bin_to_hex_rec(before, aft) when before != "" do + {b, a} = String.split_at(before, -4) + s = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"] + bin_to_hex_rec(b, [Enum.at(s, bin_to_dec(a)) | aft]) + end + + defp bin_to_hex_rec("", aft) do + aft + end + + def bin_to_dec(b) do + bin_to_dec_rec(b, 0, 0) + end + + defp bin_to_dec_rec(before, aft, i) when before != "" do + {b, a} = String.split_at(before, -1) + bin_to_dec_rec(b, case a do + "0" -> aft + "1" -> aft + Integer.pow(2, i) + end, i + 1) + end + + defp bin_to_dec_rec("", aft, _i) do + aft + end +end + +Conv.bin_to_hex("1111") +|> IO.puts() # must print f + +Conv.bin_to_hex("11101011") +|> IO.puts() # must print EB + -- cgit v1.2.3