#exe {
-Mroot=main.zig
#}

#write main.zig {
pub fn main() !void {
    try foo(123);
}
fn foo(x: u8) !void {
    var stdout_writer = std.Io.File.stdout().writerStreaming(io, &.{});
    return stdout_writer.interface.print("{d}\n", .{x});
}
const std = @import("std");
const io = std.Io.Threaded.global_single_threaded.io();
#}
#update
#check stdout {
123
#}

#write main.zig {
pub fn main() !void {
    try foo(123);
}
fn foo(x: i64) !void {
    var stdout_writer = std.Io.File.stdout().writerStreaming(io, &.{});
    return stdout_writer.interface.print("{d}\n", .{x});
}
const std = @import("std");
const io = std.Io.Threaded.global_single_threaded.io();
#}
#update {
change function type#}
#check stdout {
123
#}

#write main.zig {
pub fn main() !void {
    try foo(-42);
}
fn foo(x: i64) !void {
    var stdout_writer = std.Io.File.stdout().writerStreaming(io, &.{});
    return stdout_writer.interface.print("{d}\n", .{x});
}
const std = @import("std");
const io = std.Io.Threaded.global_single_threaded.io();
#}
#update {
change function argument#}
#check stdout {
-42
#}
