Use ctor-initializer rather than assignment for non-POD class members

src/common/wincmn.cpp

@@ -269,6 +269,8 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase);
 
 // the default initialization
 wxWindowBase::wxWindowBase()
+    : m_virtualSize(wxDefaultSize)
+    , m_bestSizeCache(wxDefaultSize)
 {
     // no window yet, no parent nor children
     m_parent = NULL;
@@ -280,9 +282,6 @@ wxWindowBase::wxWindowBase()
     m_minHeight =
     m_maxHeight = wxDefaultCoord;
 
-    // invalidiated cache value
-    m_bestSizeCache = wxDefaultSize;
-
     // window are created enabled and visible by default
     m_isShown =
     m_isEnabled = true;
@@ -340,8 +339,6 @@ wxWindowBase::wxWindowBase()
     m_accessible = NULL;
 #endif
 
-    m_virtualSize = wxDefaultSize;
-
     m_scrollHelper = NULL;
 
     m_windowVariant = wxWINDOW_VARIANT_NORMAL;