trying TEMPLATE C

src/permutation/permutation.h

@@ -0,0 +1,25 @@
+#ifndef __PERMUTATION_C_H__
+#define __PERMUTATION_C_H__
+
+#include "src/set_theoric/set_theoric.h"
+
+/* struct of permutation of unsigned int  array, not necessarly set_theoric
+ *
+ * */
+struct permutation
+{
+  size_t size;
+  unsigned int *perm;
+};
+
+typedef struct permutation permutation;
+
+permutation * create_permutation(size_t sz);
+void assign_permutation(permutation *p, unsigned int *arr);
+
+bool is_permutation_set_theoric(const permutation *p);
+
+// more general! need translation and use is_permutation_set_theoric
+bool is_permutation(const permutation *p);
+
+#endif /*__PERMUTATION_C_H__*/