diff --git a/clib/cdynarr.c b/clib/cdynarr.c
index 36b54e5..de28b9d 100644
--- a/clib/cdynarr.c
+++ b/clib/cdynarr.c
@@ -64,6 +64,16 @@ void cintarr_free(cintarr_t* array) {
 
 
 /* Float array */
+cfltarr_t* new_cfltarr(void) {
+        cfltarr_t* arr = malloc(sizeof(cfltarr_t));
+        if (arr == NULL) return NULL;
+        if (cfltarr_init(arr) == NULL) {
+            cfltarr_free(arr);
+            return NULL;
+        }
+        return arr;
+}
+
 void* cfltarr_init(cfltarr_t* array) {
     array->data = malloc(INIT_CAPA * sizeof(double));
     if (array->data == NULL) return NULL;
@@ -75,8 +85,9 @@ void* cfltarr_init(cfltarr_t* array) {
 
 void* cfltarr_append(cfltarr_t* array, double add) {
     if (array->size + 1 > array->capa) {
-        size_t newcapa = (array->capa * 10) / 6 ;
-        double* newarray = realloc(array->data, newcapa);
+        size_t newcapa = (array->capa * 10) / 6;
+        size_t memsize = newcapa * sizeof(double);
+        double* newarray = realloc(array->data, memsize);
         if (newarray == NULL) return NULL;
         array->capa = newcapa;
         array->data = newarray;
@@ -94,6 +105,11 @@ void cfltarr_destroy(cfltarr_t* array) {
     free(array->data);
 }
 
+void cfltarr_free(cfltarr_t* array) {
+    if (array == NULL) return;
+    cfltarr_destroy(array);
+    free(array);
+}
 
 /* Bool array */
 cboolarr_t* new_cboolarr(void) {
@@ -117,8 +133,9 @@ void* cboolarr_init(cboolarr_t* array) {
 
 void* cboolarr_append(cboolarr_t* array, bool add) {
     if (array->size + 1 > array->capa) {
-        size_t newcapa = (array->capa * 10) / 6 ;
-        bool* newarray = realloc(array->data, newcapa);
+        size_t newcapa = (array->capa * 10) / 6;
+        size_t memsize = newcapa * sizeof(bool);
+        bool* newarray = realloc(array->data, memsize);
         if (newarray == NULL) return NULL;
         array->capa = newcapa;
         array->data = newarray;
@@ -127,12 +144,18 @@ void* cboolarr_append(cboolarr_t* array, bool add) {
     return array->data;
 }
 
+bool* cboolarr_getref(cboolarr_t* array) {
+    return array->data;
+}
+
 void cboolarr_destroy(cboolarr_t* array) {
     if (array == NULL) return;
     free(array->data);
 }
 
 void cboolarr_free(cboolarr_t* array) {
+    if (array == NULL) return;
     cboolarr_destroy(array);
-    free(array->data);
+    free(array);
 }
+
diff --git a/clib/cdynarr_test.c b/clib/cdynarr_test.c
index cc7e8cd..abacf74 100644
--- a/clib/cdynarr_test.c
+++ b/clib/cdynarr_test.c
@@ -13,8 +13,14 @@
 
 void test01(void) {
     cintarr_t* arr = new_cintarr();
-    cintarr_append(arr, 12);
-    cintarr_append(arr, 12);
+    const size_t size = 1024 * 1024 * 32;
+    for (size_t i = 0; i < size; i++) {
+        cintarr_append(arr, (int64_t)i);
+    }
+    for (size_t i = 0; i < size; i++) {
+        MASSERT(arr->data[i] == i);
+    }
+    MASSERT(arr->size == size);
     cintarr_free(arr);
 }