Switch to i64 for words

07/src/main.zig

@@ -3,7 +3,7 @@ const std = @import("std");
 const intcode = @import("intcode");
 
 // TODO: it would be awesome if we could make this a comptime function
-const perm1 = [120][5]i32{
+const perm1 = [120][5]intcode.Word{
     .{ 0, 1, 2, 3, 4 },
     .{ 0, 1, 2, 4, 3 },
     .{ 0, 1, 3, 2, 4 },
@@ -126,7 +126,7 @@ const perm1 = [120][5]i32{
     .{ 4, 3, 2, 1, 0 },
 };
 
-const perm2 = [120][5]i32{
+const perm2 = [120][5]intcode.Word{
     .{ 5, 6, 7, 8, 9 },
     .{ 5, 6, 7, 9, 8 },
     .{ 5, 6, 8, 7, 9 },
@@ -255,13 +255,13 @@ fn doIt(m: *intcode.Machine) void {
     }
 }
 
-fn run(program: []i32, machines: *[5]intcode.Machine, permutations: [120][5]i32) !i32 {
-    var max: i32 = 0;
+fn run(program: []intcode.Word, machines: *[5]intcode.Machine, permutations: [120][5]intcode.Word) !intcode.Word {
+    var max: intcode.Word = 0;
 
     for (permutations) |inputs| {
         // Reset program state each time
         for (machines) |*machine, i| {
-            std.mem.copy(i32, machine.memory, program);
+            std.mem.copy(intcode.Word, machine.memory, program);
             machine.ip = 0;
             machine.idx = i;
         }
@@ -308,7 +308,7 @@ pub fn main() anyerror!void {
     // Allocate memory once only.
     for (machines) |*machine| {
         machine.alloc = alloc;
-        machine.memory = try alloc.alloc(i32, program.len);
+        machine.memory = try alloc.alloc(intcode.Word, program.len);
     }
 
     // Now wire up the machines correctly. The output of each machine should be