1 files changed, 68 insertions, 0 deletions
diff --git a/tests/test22.c b/tests/test22.c
new file mode 100644
index 000000000..d013db925
--- /dev/null
+++ b/tests/test22.c
@@ -0,0 +1,68 @@
+#include <stdlib.h>    /* malloc       */
+#include <stddef.h>    /* offsetof     */
+#include <stdio.h>     /* printf       */
+#include <string.h>    /* memset       */
+#include "uthash.h"
+
+#define UTF32 '\x1'
+
+typedef struct {
+    UT_hash_handle hh;
+    size_t len;
+    char encoding;      /* these two fields */
+    int text[];         /* comprise the key */
+} msg_t;
+
+typedef struct {
+    char encoding;
+    int text[];
+} lookup_key_t;
+
+int main()
+{
+    unsigned keylen;
+    msg_t *msg, *tmp, *msgs = NULL;
+    lookup_key_t *lookup_key;
+
+    int beijing[] = {0x5317, 0x4eac};   /* UTF-32LE for 北京 */
+
+    /* allocate and initialize our structure */
+    msg = (msg_t*)malloc( sizeof(msg_t) + sizeof(beijing) );
+    if (msg == NULL) {
+        exit(-1);
+    }
+    memset(msg, 0, sizeof(msg_t)+sizeof(beijing)); /* zero fill */
+    msg->len = sizeof(beijing);
+    msg->encoding = UTF32;
+    memcpy(msg->text, beijing, sizeof(beijing));
+
+    /* calculate the key length including padding, using formula */
+    keylen =   offsetof(msg_t, text)       /* offset of last key field */
+               + sizeof(beijing)             /* size of last key field */
+               - offsetof(msg_t, encoding);  /* offset of first key field */
+
+    /* add our structure to the hash table */
+    HASH_ADD( hh, msgs, encoding, keylen, msg);
+
+    /* look it up to prove that it worked :-) */
+    msg=NULL;
+
+    lookup_key = (lookup_key_t*)malloc(sizeof(*lookup_key) + sizeof(beijing));
+    if (lookup_key == NULL) {
+        exit(-1);
+    }
+    memset(lookup_key, 0, sizeof(*lookup_key) + sizeof(beijing));
+    lookup_key->encoding = UTF32;
+    memcpy(lookup_key->text, beijing, sizeof(beijing));
+    HASH_FIND( hh, msgs, &lookup_key->encoding, keylen, msg );
+    if (msg != NULL) {
+        printf("found \n");
+    }
+    free(lookup_key);
+
+    HASH_ITER(hh, msgs, msg, tmp) {
+        HASH_DEL(msgs, msg);
+        free(msg);
+    }
+    return 0;
+}