Char can't be converted to in128

[meatball133]

Bug Report

On a problem similar to finding if a numbers is a Armstrong number or not there you have to iterate over a string which results in chars, these chars has to be converted to int and in some cases they need to be raised by a very high value, meaning you can end up with really high numbers. Since char can't be converted directly to int128 but first int and then int128, would it be easier if chars just could be converted to int128. I know that this is a bit of a rare case but still feels like char should be able to be converted to int128.

Code example:

Crystal 1.7:

input == number.chars.reduce(0_i128) { |acc, i| acc + i.to_i.to_i128 ** length }

My proposed changes:

input == number.chars.reduce(0_i128) { |acc, i| acc + i.to_i128 ** length }

[straight-shoota]

Char has methods for all other interger types, so this makes sense for completeness. Should cover both Int128 and UInt128, though.