hash function

include/acl/array.h

@@ -1,5 +1,5 @@
-#ifndef array_h
-#define array_h
+#ifndef _acl_array_h
+#define _acl_array_h
 #include <stddef.h>
 size_t acl_arraylist_len(void *arraylist);
 void acl_arraylist_free(void *arraylist);

include/acl/file.h

@@ -1,5 +1,5 @@
-#ifndef acl_file_h
-#define acl_file_h
+#ifndef _acl_file_h
+#define _acl_file_h
 #include <stdbool.h>
 char* acl_ReadTextFile(const char *filePath, bool *sucess);
 #endif

include/acl/hashmap.h

@@ -0,0 +1,4 @@
+#ifndef _acl_hashmap_h
+#define _acl_hashmap_h
+unsigned hash(unsigned K);
+#endif

src/array.c

@@ -28,7 +28,8 @@ void* acl_arraylist_append(void *arraylist_void, void *element) {
 	union arraylist_meta *arraylist = arraylist_void;
 	--arraylist;
 	if(arraylist->len == arraylist->cap) {
-		arraylist->cap = arraylist->len + 10;
+		if(arraylist->len > 10) arraylist->cap = arraylist->len + 10;
+		else arraylist->cap = arraylist->len * 2;
 		arraylist = realloc(arraylist, arraylist->cap * arraylist->sizeof_one_element + sizeof *arraylist);
 		if(!arraylist) return NULL;
 	}

src/hashmap.c

@@ -0,0 +1,6 @@
+#include <math.h>
+const unsigned acl_w = sizeof (unsigned) * 8;
+const unsigned acl_m = 9;
+unsigned hash(unsigned K) {
+	return (149695736*K) >> (acl_w-acl_m);
+}