Took a closer look.
'atstype_var' should be changed to 'atstype_boxed'.
The real problem is due to 'pop' being given an incorrect type.
I tried the following type to make the code work:
extern
fun pop {a:type}(_t(a) >> _) : (a) = "ext#pop_ats"
To mix C with ATS can be difficult. In
Thanks for the response!
Unfortunately I still get trouble, viz.
...
atstype_boxed pop_ats(atstype_ref st) { return __cats_pop(st); }
atsvoid_t0ype new_ats(atstype_ref st) { __cats_new(st); }
atsvoid_t0ype push_ats(atstype_ref st, atstype_boxed val) {
__cats_push(st, val);
}
%}
typedef
