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Added comptime wizardry to 075 quiz8

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Thanks to Helios on Discord for the wizardry!
This commit is contained in:
Dave Gauer 2022-03-19 20:00:10 -04:00
parent 361630fdce
commit c3128f3dee
1 changed files with 15 additions and 7 deletions
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22
exercises/075_quiz8.zig
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@ -154,13 +154,21 @@ pub fn main() void {
const start = &a; // Archer's Point const start = &a; // Archer's Point
const destination = &f; // Fox Pond const destination = &f; // Fox Pond
// TODO: can we neaten this up???? // We could either have this:
a.paths = a_paths[0..]; //
b.paths = b_paths[0..]; // a.paths = a_paths[0..];
c.paths = c_paths[0..]; // b.paths = b_paths[0..];
d.paths = d_paths[0..]; // c.paths = c_paths[0..];
e.paths = e_paths[0..]; // d.paths = d_paths[0..];
f.paths = f_paths[0..]; // e.paths = e_paths[0..];
// f.paths = f_paths[0..];
//
// or this comptime wizardry:
//
const letters = [_][]const u8{ "a", "b", "c", "d", "e", "f" };
inline for (letters) |letter| {
@field(@This(), letter).paths = @field(@This(), letter ++ "_paths")[0..];
}
var notebook = HermitsNotebook{}; var notebook = HermitsNotebook{};
var working_note = NotebookEntry{ var working_note = NotebookEntry{