minor optimization: no need to check for NULL when using C++ delete operator

4 files changed, 5 insertions, 10 deletions

diff --git a/src/parser.cpp b/src/parser.cpp
index 0193e19..ce77aaf 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -418,8 +418,7 @@ StateEscaped:
 
 StringBuildingMachine::~StringBuildingMachine()
 {
-	if (qregspec_machine)
-		delete qregspec_machine;
+	delete qregspec_machine;
 }
 
 State *
diff --git a/src/qregisters.h b/src/qregisters.h
index ff4da87..0f2404a 100644
--- a/src/qregisters.h
+++ b/src/qregisters.h
@@ -274,8 +274,7 @@ class QRegisterStack {
 
 		~UndoTokenPush()
 		{
-			if (entry)
-				delete entry;
+			delete entry;
 		}
 
 		void run(void);
diff --git a/src/ring.h b/src/ring.h
index 0aa12f0..d2e9d7b 100644
--- a/src/ring.h
+++ b/src/ring.h
@@ -143,8 +143,7 @@ extern class Ring {
 			     : UndoToken(), ring(_ring), buffer(_buffer) {}
 		~UndoTokenEdit()
 		{
-			if (buffer)
-				delete buffer;
+			delete buffer;
 		}
 
 		void run(void);
diff --git a/src/undo.h b/src/undo.h
index 028d73c..9fc5925 100644
--- a/src/undo.h
+++ b/src/undo.h
@@ -145,15 +145,13 @@ public:
 
 	~UndoTokenObject()
 	{
-		if (obj)
-			delete obj;
+		delete obj;
 	}
 
 	void
 	run(void)
 	{
-		if (*ptr)
-			delete *ptr;
+		delete *ptr;
 		*ptr = obj;
 		obj = NULL;
 	}