Tweaking the TextMate C snippets

extras/imported/c-mode/Declarations/030 for int loop (fori).yasnippet

@@ -1,9 +1,9 @@
 # -*- mode: snippet -*-
 # key: for
-# contributor: Translated from TextMate Snippet
 # name: For Loop
+# expand-env: ((yas/wrap-around-region t))
 # --
-for(size_t ${2:i} = 0; $2 < ${1:count}; ${3:++$2})
+for(size_t ${2:i} = 0; $2 < ${1:count}; ${3:++i$(unless yas/modified-p (concat "++" (yas/field-value 2)))})
 {
-	${0:/* code */}
+    $0
 }