1 files changed, 13 insertions, 0 deletions

diff --git a/src/solve_h48.h b/src/solve_h48.h
index 4bf9f78..bfcf585 100644
--- a/src/solve_h48.h
+++ b/src/solve_h48.h
@@ -79,6 +79,7 @@ _static void h48set_destroy(h48set_t *);
 _static_inline int64_t h48set_lookup(h48set_t *, int64_t);
 _static_inline void h48set_insert(h48set_t *, int64_t);
 _static_inline bool h48set_contains(h48set_t *, int64_t);
+_static inline int64_t h48set_save(h48set_t *, int64_t *);
 
 _static_inline int64_t coord_h48(cube_t, const uint32_t *, uint8_t);
 _static_inline int64_t coord_h48_edges(cube_t, int64_t, uint8_t, uint8_t);
@@ -167,6 +168,18 @@ h48set_contains(h48set_t *set, int64_t x)
         return i == -1;
 }
 
+_static int64_t
+h48set_save(h48set_t *set, int64_t *a)
+{
+        int64_t i, j;
+
+        for (i = 0, j = 0; i < set->capacity; i++)
+                if (set->table[i] != -1)
+                        a[j++] = set->table[i];
+
+        return j;
+}
+
 _static_inline int64_t
 coord_h48(cube_t c, const uint32_t *cocsepdata, uint8_t h)
 {