1 files changed, 40 insertions, 0 deletions
diff --git a/src/include/skalibs/gensetdyn.h b/src/include/skalibs/gensetdyn.h
new file mode 100644
index 0000000..4fe396b
--- /dev/null
+++ b/src/include/skalibs/gensetdyn.h
@@ -0,0 +1,40 @@
+/* ISC license. */
+
+#ifndef GENSETDYN_H
+#define GENSETDYN_H
+
+#include <skalibs/stralloc.h>
+#include <skalibs/genalloc.h>
+#include <skalibs/functypes.h>
+
+typedef struct gensetdyn_s gensetdyn, *gensetdyn_ref ;
+struct gensetdyn_s
+{
+  stralloc storage ;
+  genalloc freelist ; /* array of unsigned int */
+  unsigned int esize ;
+  unsigned int base ;
+  unsigned int fracnum ;
+  unsigned int fracden ;
+} ;
+
+#define GENSETDYN_ZERO { .storage = STRALLOC_ZERO, .freelist = GENALLOC_ZERO, .esize = 1, .base = 0, .fracnum = 0, .fracden = 1 }
+extern gensetdyn const gensetdyn_zero ;
+
+#define GENSETDYN_INIT(type, b, num, den) { .storage = STRALLOC_ZERO, .freelist = GENALLOC_ZERO, .esize = sizeof(type), .base = (b), .fracnum = (num), .fracden = (den) }
+extern void gensetdyn_init (gensetdyn_ref, unsigned int, unsigned int, unsigned int, unsigned int) ;
+
+#define gensetdyn_n(g) ((g)->storage.len - genalloc_len(unsigned int, &(g)->freelist))
+extern int gensetdyn_ready (gensetdyn_ref, unsigned int) ;
+#define gensetdyn_readyplus(x, n) gensetdyn_ready(x, gensetdyn_n(x) + (n))
+extern void gensetdyn_free (gensetdyn_ref) ;
+
+extern int gensetdyn_new (gensetdyn_ref, unsigned int *) ;
+extern int gensetdyn_delete (gensetdyn_ref, unsigned int) ;
+
+#define gensetdyn_p(g, i) ((g)->storage.s + (i) * (g)->esize)
+#define GENSETDYN_P(type, g, i) ((type *)gensetdyn_p(g, i))
+
+extern unsigned int gensetdyn_iter (gensetdyn_ref, iterfunc_t_ref, void *) ;
+
+#endif