Removed the SAFE_DELETE macro.

In most case the assignment to null was not necessary since it was easily provable that the (local) variable wouldn't have referenced after that anyway.

common/drawframe.cpp

@@ -168,7 +168,8 @@ EDA_DRAW_FRAME::EDA_DRAW_FRAME( wxWindow* aParent,
 
 EDA_DRAW_FRAME::~EDA_DRAW_FRAME()
 {
-    SAFE_DELETE( m_currentScreen );
+    delete m_currentScreen;
+    m_currentScreen = NULL;
 
     m_auimgr.UnInit();
 }

eeschema/class_libentry.cpp

@@ -868,7 +868,7 @@ bool LIB_COMPONENT::LoadDrawEntries( LINE_READER& aLineReader, wxString& aErrorM
         {
             aErrorMsg.Printf( wxT( "error <%s> in DRAW command %c" ),
                               GetChars( aErrorMsg ), line[0] );
-            SAFE_DELETE( newEntry );
+            delete newEntry;
 
             // Flush till end of draw section
             do
@@ -913,7 +913,7 @@ bool LIB_COMPONENT::LoadField( LINE_READER& aLineReader, wxString& aErrorMsg )
 
     if( !field->Load( aLineReader, aErrorMsg ) )
     {
-        SAFE_DELETE( field );
+        delete field;
         return false;
     }
 
@@ -931,7 +931,7 @@ bool LIB_COMPONENT::LoadField( LINE_READER& aLineReader, wxString& aErrorMsg )
         if( field->GetId() == VALUE )
             m_name = field->GetText();
 
-        SAFE_DELETE( field );
+        delete field;
     }
     else
     {

eeschema/dialogs/dialog_erc.cpp

@@ -247,7 +247,7 @@ void DIALOG_ERC::ReBuildMatrixPanel()
     wxStaticText* text = new wxStaticText( m_matrixPanel, -1, wxT( "W" ), pos );
     int text_height   = text->GetRect().GetHeight();
     bitmap_size.y = std::max( bitmap_size.y, text_height );
-    SAFE_DELETE( text );
+    delete text;
 
     // compute the Y pos interval:
     pos.y = text_height;

eeschema/edit_label.cpp

@@ -110,7 +110,7 @@ SCH_TEXT* SCH_EDIT_FRAME::CreateNewText( wxDC* aDC, int aType )
 
     if( textItem->GetText().IsEmpty() )
     {
-        SAFE_DELETE( textItem );
+        delete textItem;
         return NULL;
     }
 

eeschema/files-io.cpp

@@ -293,7 +293,8 @@ bool SCH_EDIT_FRAME::LoadOneEEProject( const wxString& aFileName, bool aIsNew )
     // Clear the screen before open a new file
     if( g_RootSheet )
     {
-        SAFE_DELETE( g_RootSheet );
+        delete g_RootSheet;
+        g_RootSheet = NULL;
     }
 
     CreateScreens();

eeschema/libedit.cpp

@@ -143,7 +143,8 @@ void LIB_EDIT_FRAME::LoadOneLibraryPart( wxCommandEvent& event )
     // Delete previous library component, if any
     if( m_component )
     {
-        SAFE_DELETE( m_component );
+        delete m_component;
+        m_component = NULL;
         m_aliasName.Empty();
     }
 
@@ -212,7 +213,7 @@ bool LIB_EDIT_FRAME::LoadOneLibraryPartAux( LIB_ALIAS* aEntry, CMP_LIBRARY* aLib
 
     if( m_component )
     {
-        SAFE_DELETE( m_component );
+        delete m_component;
         m_aliasName.Empty();
     }
 
@@ -574,7 +575,8 @@ All changes will be lost. Discard changes?" ) ) )
     }
     else
     {
-        SAFE_DELETE( m_component );
+        delete m_component;
+        m_component = NULL;
         m_aliasName.Empty();
     }
 
@@ -660,7 +662,7 @@ lost!\n\nClear the current component from the screen?" ) ) )
 
     if( m_component )
     {
-        SAFE_DELETE( m_component );
+        delete m_component;
         m_aliasName.Empty();
     }
 

eeschema/load_one_schematic_file.cpp

@@ -232,7 +232,7 @@ again." );
 
             if( !itemLoaded )
             {
-                SAFE_DELETE( item );
+                delete item;
             }
             else
             {

eeschema/schframe.cpp

@@ -274,10 +274,14 @@ SCH_EDIT_FRAME::SCH_EDIT_FRAME( wxWindow* aParent, const wxString& aTitle,
 SCH_EDIT_FRAME::~SCH_EDIT_FRAME()
 {
     SetScreen( NULL );
-    SAFE_DELETE( m_CurrentSheet );     // a SCH_SHEET_PATH, on the heap.
+    delete m_CurrentSheet;     // a SCH_SHEET_PATH, on the heap.
-    SAFE_DELETE( m_undoItem );
+    delete m_undoItem;
-    SAFE_DELETE( g_RootSheet );
+    delete g_RootSheet;
-    SAFE_DELETE( m_findReplaceData );
+    delete m_findReplaceData;
+    m_CurrentSheet = NULL;
+    m_undoItem = NULL;
+    g_RootSheet = NULL;
+    m_findReplaceData = NULL;
     CMP_LIBRARY::RemoveAllLibraries();
 }
 

eeschema/sheet.cpp

@@ -292,7 +292,7 @@ static void ExitSheet( EDA_DRAW_PANEL* aPanel, wxDC* aDC )
 
     if( item->IsNew() )
     {
-        SAFE_DELETE( item );
+        delete item;
     }
     else if( item->IsMoving() || item->IsResized() )
     {

include/wxstruct.h

@@ -51,11 +51,6 @@
 #include <wx/overlay.h>
 #endif
 
-// C++ guarantees that operator delete checks its argument for null-ness
-#ifndef SAFE_DELETE
-#define SAFE_DELETE( p ) delete (p); (p) = NULL;
-#endif
-
 // Option for dialog boxes
 #define DIALOG_STYLE wxDEFAULT_DIALOG_STYLE | wxFRAME_FLOAT_ON_PARENT | MAYBE_RESIZE_BORDER