1 files changed, 36 insertions, 0 deletions
diff --git a/src/bitmap.c b/src/bitmap.c
new file mode 100644
index 0000000..e8ce806
--- /dev/null
+++ b/src/bitmap.c
@@ -0,0 +1,36 @@
+/*
+ * bitmap.c
+ * 
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "bitmap.h"
+
+void
+mapinit(Map *m, int n)
+{
+  m->size = (n + 7) >> 3;
+  m->map = calloc(m->size, 1);
+}
+
+// free space allocated
+void
+mapfree(Map *m)
+{
+  free(m->map);
+  m->map = 0;
+  m->size = 0;
+}
+
+// copy t <- s
+void
+clonemap(Map *t, Map *s)
+{
+  t->size = s->size;
+  t->map = malloc(s->size);
+  memcpy(t->map, s->map, t->size);
+}
+
+// EOF