Merge pull request HaxeFoundation#824 from Aidan63/pointer-decrementing

hughsando · web-flow · commit 947136ac3d42 · 2019-07-08T11:43:07.000+08:00
added sub and decBy to pointer
diff --git a/include/cpp/Pointer.h b/include/cpp/Pointer.h
@@ -257,7 +257,9 @@ class Pointer
  	inline Pointer inc() { return ++ptr; }
 	inline Pointer dec() { return --ptr; }
 	inline Pointer add(int inInt) { return ptr+inInt; }
+	inline Pointer sub(int inInt) { return ptr-inInt; }
  	inline Pointer incBy(int inDiff) { ptr+=inDiff; return ptr; }
+ 	inline Pointer decBy(int inDiff) { ptr-=inDiff; return ptr; }
  	inline T &postIncRef() { return *ptr++; }
  	inline T &postIncVal() { return *ptr++; }
 
@@ -330,7 +332,9 @@ class Pointer<void>
  	inline Pointer inc() { return ptr; }
 	inline Pointer dec() { return ptr; }
 	inline Pointer add(int inInt) { return ptr; }
+	inline Pointer sub(int inInt) { return ptr; }
  	inline Pointer incBy(int inDiff) { return ptr; }
+ 	inline Pointer decBy(int inDiff) { return ptr; }
  	inline void postIncRef() {  }
  	inline void postIncVal() {  }
 
