1 files changed, 67 insertions, 0 deletions
diff --git a/tests/test64.c b/tests/test64.c
new file mode 100644
index 000000000..ec5fba860
--- /dev/null
+++ b/tests/test64.c
@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include "utlist.h"
+
+typedef struct el {
+    int id;
+    struct el *next, *prev;
+} el;
+
+int main()
+{
+    int i;
+    el els[10], *e;
+    el *headA = NULL;
+    el *headB = NULL;
+    for(i=0; i<10; i++) {
+        els[i].id=(int)'a'+i;
+    }
+
+    /* test DL macros */
+    printf("DL macros\n");
+    DL_APPEND(headA,&els[0]);
+    DL_APPEND(headA,&els[1]);
+    DL_APPEND(headA,&els[2]);
+    DL_FOREACH(headA,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+
+    DL_APPEND(headB,&els[3]);
+    DL_APPEND(headB,&els[4]);
+    DL_APPEND(headB,&els[5]);
+    DL_FOREACH(headB,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+
+    DL_CONCAT(headA,headB);
+    DL_FOREACH(headA,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+
+    /* other variations */
+    headA = NULL;
+    DL_CONCAT(headA,headB);
+    DL_FOREACH(headA,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+    headB = NULL;
+    DL_CONCAT(headA,headB);
+    DL_FOREACH(headA,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+    headA=NULL;
+    headB=NULL;
+    DL_APPEND(headA,&els[0]);
+    DL_APPEND(headB,&els[1]);
+    DL_CONCAT(headA,headB);
+    DL_FOREACH(headA,e) {
+        printf("%c ", e->id);
+    }
+    printf("\n");
+
+    return 0;
+}