no changes (0 -> NULL)

[wxWidgets.git] / include / wx / datetime.h

diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index 92398e53f2ae1e2893a897fa42d40de4a6e23c3f..ad0755da66c3c8823dee5c985ec6f1ddbfd58270 100644 (file)
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -17,6 +17,8 @@
     #pragma interface "datetime.h"
 #endif
 
+#if wxUSE_DATETIME
+
 #include <time.h>
 #include <limits.h>             // for INT_MIN
 
@@ -113,7 +115,7 @@ class WXDLLEXPORT wxDateSpan;
 // wxInvalidDateTime)
 class WXDLLEXPORT wxDateTime;
 
-WXDLLEXPORT_DATA(extern const wxDateTime&) wxDefaultDateTime;
+WXDLLEXPORT_DATA(extern const wxDateTime) wxDefaultDateTime;
 #define wxInvalidDateTime wxDefaultDateTime
 
 // ----------------------------------------------------------------------------
@@ -539,7 +541,7 @@ public:
     // ------------------------------------------------------------------------
 
         // default ctor does not initialize the object, use Set()!
-    wxDateTime() { }
+    wxDateTime() { m_time = wxLongLong((long)ULONG_MAX, ULONG_MAX); }
 
         // from time_t: seconds since the Epoch 00:00:00 UTC, Jan 1, 1970)
 #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400))
@@ -773,8 +775,7 @@ public:
     // result of timezone shift)
     // ------------------------------------------------------------------------
 
-        // is the date valid? Note that this will return TRUE for non
-        // initialized objects but FALSE if *this == wxInvalidDateTime
+        // is the date valid?
     inline bool IsValid() const { return m_time != wxInvalidDateTime.m_time; }
 
         // get the broken down date/time representation in the given timezone
@@ -1571,4 +1572,6 @@ inline WXDLLEXPORT void wxPrevWDay(wxDateTime::WeekDay& wd)
                                : (wxDateTime::WeekDay)(wd - 1);
 }
 
+#endif // wxUSE_DATETIME
+
 #endif // _WX_DATETIME_H