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

#write test.zig {
const Foo = struct {
    comptime b: i32,
};
export fn entry() void {
    var f: Foo = undefined;
    _ = &f;
}
#}
#update
#check errors {
test.zig:2:5: error: comptime field without default initialization value
#}
