diff --git a/include/tlibc/collections/Array.h b/include/tlibc/collections/Array.h
index 6b433a0..37814dd 100755
--- a/include/tlibc/collections/Array.h
+++ b/include/tlibc/collections/Array.h
@@ -33,8 +33,8 @@ static inline Array_ Array_copy(Array_ src){
     return copy;
 }
 
-#define Array_len(AR, T) ((AR)->size / sizeof(T))
-#define Array_memset(A, VAL) memset((A)->data, VAL, (A)->size)
+#define Array_len(A, T) (A.size / sizeof(T))
+#define Array_memset(A, VAL) memset(A.data, VAL, A.size)
 
 #define struct_castTo_Array(STRUCT_PTR) Array_construct_size((STRUCT_PTR), sizeof(*STRUCT_PTR))
 
diff --git a/include/tlibc/filesystem.h b/include/tlibc/filesystem.h
index 6bd57fe..5c0a00c 100644
--- a/include/tlibc/filesystem.h
+++ b/include/tlibc/filesystem.h
@@ -58,6 +58,10 @@ str path_basename(str path, bool remove_ext);
 
 Result(FILE*) file_open(cstr file_name, cstr fopen_mode);
 
+static inline void file_close(FILE* f){
+    fclose(f);
+}
+
 /// if file exists, opens it with "rb+", else creates it with "wb+"
 Result(FILE*) file_openOrCreateReadWrite(cstr file_name);