#exe {
-Mroot=main.zig
#}

#write main.zig {
const std = @import("std");
pub fn main() !void {
    try std.Io.File.stdout().writeStreamingAll(io, "foo\n");
}
const io = std.Io.Threaded.global_single_threaded.io();
#}
#update
#check stdout {
foo
#}

#write main.zig {
const std = @import("std");

pub fn main() !void {
    try std.Io.File.stdout().writeStreamingAll(io, "foo\n");
}
const io = std.Io.Threaded.global_single_threaded.io();
#}
#update {
change line number#}
#check stdout {
foo
#}
