Added --use-stl to cnfigure, wxUSE_STL to setup0.h

Moved wx/datetime.inl contents to wx/datetime.h and removed
inline redefinition hack.
  Implemented STL-like interface on top of wxList/wxArray, when wxUSE_STL=0.
  Implemented wxList-like and wxArray interfaces on top of std::list and
std::vector, when wxUSE_STL=1.
  Added arrstr.h, moved wxArrayString declaration there; string.h
#includes arrstr.h only if WXWIN_COMPATIBILITY_2_4 is enabled.
  Added WX_CLEAR_HASH_MAP, WX_CLEAR_HASH_TABLE, WX_CLEAR_LIST macros,
to clear a wxHashMap, wxHashTable, wxList containing pointers: deletes
pointers and makes container zero-sized.
  When wxUSE_STL=1, wxStringList works like a std::list<wxString>.
  Made wxBase compile when wxUSE_STL=1.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21768 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/filename.h

@@ -18,6 +18,7 @@
 
 #ifndef WX_PRECOMP
     #include  "wx/string.h"
+    #include  "wx/arrstr.h"
 #endif
 
 /*
@@ -172,7 +173,7 @@ public:
     // file tests
 
         // is the filename valid at all?
-    bool IsOk() const { return !m_dirs.IsEmpty() || !m_name.IsEmpty(); }
+    bool IsOk() const { return m_dirs.size() != 0 || !m_name.IsEmpty(); }
 
         // does the file with this name exists?
     bool FileExists() const;
@@ -330,7 +331,7 @@ public:
     void PrependDir( const wxString &dir );
     void InsertDir( int before, const wxString &dir );
     void RemoveDir( int pos );
-    size_t GetDirCount() const { return m_dirs.GetCount(); }
+    size_t GetDirCount() const { return m_dirs.size(); }
 
     // Other accessors
     void SetExt( const wxString &ext )          { m_ext = ext; }