init

1 files changed, 25 insertions, 0 deletions

diff --git a/cheesemap.c b/cheesemap.c
new file mode 100644
index 0000000..c443593
--- /dev/null
+++ b/cheesemap.c
@@ -0,0 +1,25 @@
+#include "cheesemap.h"
+
+#include <stddef.h>
+
+static inline uintptr_t cm_raw_capacity(const struct cheesemap_raw* map) {
+  assert(map != NULL);
+  return map->cap_mask + 1;
+}
+
+static inline uint8_t* cm_raw_origin(const struct cheesemap_raw* map,
+                                     uintptr_t entry_size) {
+  assert(map != NULL);
+  return map->ctrl - entry_size * cm_raw_capacity(map);
+}
+
+void cm_raw_drop(struct cheesemap_raw* map, uintptr_t entry_size,
+                 struct cheesemap_fns* fns) {
+  assert(map != NULL);
+  assert(fns != NULL);
+
+  if (map->ctrl == NULL) return;
+
+  uint8_t* origin = cm_raw_origin(map, entry_size);
+  fns->free(origin, fns->mem_usr);
+}