diff --git a/base64/base64.c2 b/base64/base64.c2
index 64f2f92..47b4eed 100644
--- a/base64/base64.c2
+++ b/base64/base64.c2
@@ -86,7 +86,7 @@ public fn i32 decode(const i8* in, u32 len, u8* out) {
         i8 cc;
         switch (i % 4) {
         case 0:
-            cc = (c << 2);
+            cc = (i8)(c << 2);
             out[j] = cast<u8>(cc);
             //out[j] = cast<u8>((c << 2) & 0xFF);       // TODO c2c assert fails on cast
             continue;
@@ -95,7 +95,7 @@ public fn i32 decode(const i8* in, u32 len, u8* out) {
             // if not last char with padding
             if (i < (len -3) || in[len -2] != PAD) {
                 //out[j] = cast<u8>((c & 0xF) << 4);    // TODO c2c assert fails on cast
-                cc = (c & 0xF) << 4;
+                cc = (i8)((c & 0xF) << 4);
                 out[j] = cast<u8>(cc);
             }
             continue;
@@ -103,7 +103,7 @@ public fn i32 decode(const i8* in, u32 len, u8* out) {
             out[j++] += (c >> 2) & 0xF;
             if (i < (len -2) || in[len -1] != PAD) {
                 //out[j] = cast<u8>((c & 0x3) << 6);  // TODO c2c assert fails on cast
-                cc = (c & 0x3) << 6;
+                cc = (i8)((c & 0x3) << 6);
                 out[j] = cast<u8>(cc);
             }
             continue;
diff --git a/plugin/plugin1.c2 b/plugin/plugin1.c2
index c12538a..1c55dec 100644
--- a/plugin/plugin1.c2
+++ b/plugin/plugin1.c2
@@ -4,9 +4,23 @@ import other;
 
 import stdio;
 
+public i32[] array1 = { 1, 2, 3 }
+
+public i32[+] array2;
+
+array2 += 4;
+array2 += 5;
+array2 += 6;
+array2 += 7;
+
+public i32[5] array3 = { 8, 9, 10, 11, 12 }
+
 public fn void load(i32 arg) {
     stdio.printf("Plugin1.load() %d\n", arg);
     stdio.printf("other.test1 = %p\n", other.test1);
+    stdio.printf("plugin1.array1 = %d\n", elemsof(array1));
+    stdio.printf("plugin1.array2 = %d\n", elemsof(array2));
+    stdio.printf("plugin1.array3 = %d\n", elemsof(array3));
     other.test1();
 }
 
diff --git a/plugin/test_lib.c2 b/plugin/test_lib.c2
new file mode 100644
index 0000000..b27d762
--- /dev/null
+++ b/plugin/test_lib.c2
@@ -0,0 +1,43 @@
+module test;
+
+import stdio local;
+import plugin_main;
+
+public fn i32 main() {
+#if 1
+    u32 len1 = elemsof(plugin_main.array1);
+#else
+    u32 len1 = 3;
+#endif
+    printf("i32[%d] plugin1.array1 = { ", len1);
+    for (u32 i = 0; i < len1; i++) {
+        printf("%d, ", plugin_main.array1[i]);
+    }
+    printf("};\n");
+
+#if 1
+    u32 len2 = elemsof(plugin_main.array2);
+#else
+    // length of incremental arrays is not exposed in the interface
+    u32 len2 = 4;
+#endif
+    printf("i32[%d] plugin1.array2 = { ", len2);
+    for (u32 i = 0; i < len2; i++) {
+        printf("%d, ", plugin_main.array2[i]);
+    }
+    printf("};\n");
+
+#if 1
+    u32 len3 = elemsof(plugin_main.array3);
+#else
+    // length of incremental arrays is not exposed in the interface
+    u32 len3 = 5;
+#endif
+    printf("i32[%d] plugin1.array3 = { ", len3);
+    for (u32 i = 0; i < len3; i++) {
+        printf("%d, ", plugin_main.array3[i]);
+    }
+    printf("};\n");
+
+    return 0;
+}
diff --git a/recipe.txt b/recipe.txt
index f31467f..e2a30bc 100644
--- a/recipe.txt
+++ b/recipe.txt
@@ -172,6 +172,13 @@ executable plugin_mgr
     plugin/plugin_mgr.c2
 end
 
+executable test_lib
+    $warnings no-unused
+	$backend c
+    $use plugin1 dynamic
+    plugin/test_lib.c2
+end
+
 executable pthread_test
     $warnings no-unused
 	$backend c