#zig build-obj {
--name test -fno-emit-bin
-Mroot=test.zig
#}

#write test.zig {
const y = sub(10, 20);
fn sub(a: u16, b: u16) u16 {
    return a - b;
}

export fn entry() usize {
    return @sizeOf(@TypeOf(&y));
}
#}
#update
#check errors {
test.zig:3:14: error: overflow of integer type 'u16' with value '-10'
test.zig:1:14: note: called at comptime here
#}
