Meg's Mirrors

zig

1	#exe {
2	-Mroot=main.zig
3	#}
4
5	#write main.zig {
6	const Big = struct { arr: [10]u8 };
7	pub fn main(init: std.process.Init) !void {
8	var big: Big = undefined;
9	big = .{ .arr = @splat(123) };
10	var stdout_writer = std.Io.File.stdout().writerStreaming(init.io, &.{});
11	const index = big.arr.len - 1;
12	big.arr[index] = 234;
13	stdout_writer.interface.print("arr[{d}] = {d}\n", .{ index, big.arr[index] }) catch |err| switch (err) {
14	error.WriteFailed => return stdout_writer.err.?,
15	};
16	}
17	const std = @import("std");
18	#}
19	#update
20	#check stdout {
21	arr[9] = 234
22	#}
23
24	#write main.zig {
25	const Big = struct { arr: [1000]u8 };
26	pub fn main(init: std.process.Init) !void {
27	var big: Big = undefined;
28	big = .{ .arr = @splat(123) };
29	var stdout_writer = std.Io.File.stdout().writerStreaming(init.io, &.{});
30	const index = big.arr.len - 1;
31	big.arr[index] = 234;
32	stdout_writer.interface.print("arr[{d}] = {d}\n", .{ index, big.arr[index] }) catch |err| switch (err) {
33	error.WriteFailed => return stdout_writer.err.?,
34	};
35	}
36	const std = @import("std");
37	#}
38	#update "increase array length"
39	#check stdout {
40	arr[999] = 234
41	#}