#include <stdbool.h>
#include <stddef.h>
-struct case_ordering;
+struct subcase;
struct casereader;
-struct merge *merge_create (const struct case_ordering *, size_t);
+struct merge *merge_create (const struct subcase *, size_t);
void merge_destroy (struct merge *);
void merge_append (struct merge *, struct casereader *);
struct casereader *merge_make_reader (struct merge *);