diff --git a/.vscode/c.code-snippets b/.vscode/c.code-snippets
index 5083568..e5479e0 100644
--- a/.vscode/c.code-snippets
+++ b/.vscode/c.code-snippets
@@ -9,16 +9,17 @@
     "body": ["#define swap(a, b) { typeof(a) temp = a; a = b; b = temp; }"],
     "description": "Define function swap two var with macro"
   },
-  "Define function swap two int": {
-    "prefix": "fn_swap",
+  "Define var swapper": {
+    "prefix": "fn_var_swapper",
     "body": [
-      "void swap(int *a, int *b) {",
-      "    int temp = *a;",
-      "    *a = *b;",
-      "    *b = temp;",
-      "}"
+      "#define SWAPPER(type, name)                                                    \\",
+      "    void name(type *a, type *b) {                                              \\",
+      "        type t = *a;                                                           \\",
+      "        *a = *b;                                                               \\",
+      "        *b = t;                                                                \\",
+      "    }"
     ],
-    "description": "Define function swap two int"
+    "description": "Define var swapper"
   },
   "Define function put bool": {
     "prefix": "fn_putbool",