Return old, not new, selection from wxMSW wxNotebook::ChangeSelection().

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

diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index 7da0c17a28ba00d36648e27f9c461514323994ac..2531c54686b3e04458dd2b979b6fb6b648bff28e 100644 (file)
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -26,6 +26,7 @@
 #include <limits.h>             // for INT_MIN
 
 #include "wx/longlong.h"
 #include <limits.h>             // for INT_MIN
 
 #include "wx/longlong.h"

+#include "wx/anystr.h"

 
 class WXDLLIMPEXP_FWD_BASE wxDateTime;
 class WXDLLIMPEXP_FWD_BASE wxTimeSpan;
 
 class WXDLLIMPEXP_FWD_BASE wxDateTime;
 class WXDLLIMPEXP_FWD_BASE wxTimeSpan;


@@ -127,12 +128,25 @@ WXDLLIMPEXP_BASE struct tm *wxGmtime_r(const time_t*, struct tm*);
 // wxInvalidDateTime)
 class WXDLLIMPEXP_FWD_BASE wxDateTime;
 
 // wxInvalidDateTime)
 class WXDLLIMPEXP_FWD_BASE wxDateTime;
 

-extern WXDLLIMPEXP_DATA_BASE(const char *) wxDefaultDateTimeFormat;
-extern WXDLLIMPEXP_DATA_BASE(const char *) wxDefaultTimeSpanFormat;
+extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultDateTimeFormat[];
+extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultTimeSpanFormat[];

 extern WXDLLIMPEXP_DATA_BASE(const wxDateTime) wxDefaultDateTime;
 
 #define wxInvalidDateTime wxDefaultDateTime
 
 extern WXDLLIMPEXP_DATA_BASE(const wxDateTime) wxDefaultDateTime;
 
 #define wxInvalidDateTime wxDefaultDateTime
 

+
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
+
+// if configure detected strftime(), we have it too
+#ifdef HAVE_STRFTIME
+    #define wxHAS_STRFTIME
+// suppose everyone else has strftime except Win CE unless VC8 is used
+#elif !defined(__WXWINCE__) || defined(__VISUALC8__)
+    #define wxHAS_STRFTIME
+#endif
+

 // ----------------------------------------------------------------------------
 // wxDateTime represents an absolute moment in the time
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxDateTime represents an absolute moment in the time
 // ----------------------------------------------------------------------------


@@ -233,7 +247,7 @@ public:
         // adoption of the Gregorian calendar (see IsGregorian())
         //
         // All data and comments taken verbatim from "The Calendar FAQ (v 2.0)"
         // adoption of the Gregorian calendar (see IsGregorian())
         //
         // All data and comments taken verbatim from "The Calendar FAQ (v 2.0)"

-        // by Claus Tøndering, http://www.pip.dknet.dk/~c-t/calendar.html
+        // by Claus Tøndering, http://www.pip.dknet.dk/~c-t/calendar.html

         // except for the comments "we take".
         //
         // Symbol "->" should be read as "was followed by" in the comments
         // except for the comments "we take".
         //
         // Symbol "->" should be read as "was followed by" in the comments


@@ -528,16 +542,25 @@ public:
                                         int year = Inv_Year,
                                         Calendar cal = Gregorian);
 
                                         int year = Inv_Year,
                                         Calendar cal = Gregorian);
 

+

         // get the full (default) or abbreviated month name in the current
         // locale, returns empty string on error
     static wxString GetMonthName(Month month,
                                  NameFlags flags = Name_Full);
 
         // get the full (default) or abbreviated month name in the current
         // locale, returns empty string on error
     static wxString GetMonthName(Month month,
                                  NameFlags flags = Name_Full);
 

+        // get the standard English full (default) or abbreviated month name
+    static wxString GetEnglishMonthName(Month month,
+                                        NameFlags flags = Name_Full);
+

         // get the full (default) or abbreviated weekday name in the current
         // locale, returns empty string on error
     static wxString GetWeekDayName(WeekDay weekday,
                                    NameFlags flags = Name_Full);
 
         // get the full (default) or abbreviated weekday name in the current
         // locale, returns empty string on error
     static wxString GetWeekDayName(WeekDay weekday,
                                    NameFlags flags = Name_Full);
 

+        // get the standard English full (default) or abbreviated weekday name
+    static wxString GetEnglishWeekDayName(WeekDay weekday,
+                                          NameFlags flags = Name_Full);
+

         // get the AM and PM strings in the current locale (may be empty)
     static void GetAmPmStrings(wxString *am, wxString *pm);
 
         // get the AM and PM strings in the current locale (may be empty)
     static void GetAmPmStrings(wxString *am, wxString *pm);
 


@@ -706,7 +729,7 @@ public:
     wxDateTime& SetToPrevWeekDay(WeekDay weekday);
     inline wxDateTime GetPrevWeekDay(WeekDay weekday) const;
 
     wxDateTime& SetToPrevWeekDay(WeekDay weekday);
     inline wxDateTime GetPrevWeekDay(WeekDay weekday) const;
 

-        // set to Nth occurence of given weekday in the given month of the
+        // set to Nth occurrence of given weekday in the given month of the

         // given year (time is set to 0), return true on success and false on
         // failure. n may be positive (1..5) or negative to count from the end
         // of the month (see helper function SetToLastWeekDay())
         // given year (time is set to 0), return true on success and false on
         // failure. n may be positive (1..5) or negative to count from the end
         // of the month (see helper function SetToLastWeekDay())


@@ -962,37 +985,37 @@ public:
 
     inline bool operator<(const wxDateTime& dt) const
     {
 
     inline bool operator<(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() < dt.GetValue();
     }
 
     inline bool operator<=(const wxDateTime& dt) const
     {
         return GetValue() < dt.GetValue();
     }
 
     inline bool operator<=(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() <= dt.GetValue();
     }
 
     inline bool operator>(const wxDateTime& dt) const
     {
         return GetValue() <= dt.GetValue();
     }
 
     inline bool operator>(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() > dt.GetValue();
     }
 
     inline bool operator>=(const wxDateTime& dt) const
     {
         return GetValue() > dt.GetValue();
     }
 
     inline bool operator>=(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() >= dt.GetValue();
     }
 
     inline bool operator==(const wxDateTime& dt) const
     {
         return GetValue() >= dt.GetValue();
     }
 
     inline bool operator==(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() == dt.GetValue();
     }
 
     inline bool operator!=(const wxDateTime& dt) const
     {
         return GetValue() == dt.GetValue();
     }
 
     inline bool operator!=(const wxDateTime& dt) const
     {

-        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime") );

         return GetValue() != dt.GetValue();
     }
 
         return GetValue() != dt.GetValue();
     }
 


@@ -1055,104 +1078,42 @@ public:
     inline wxTimeSpan Subtract(const wxDateTime& dt) const;
     inline wxTimeSpan operator-(const wxDateTime& dt2) const;
 
     inline wxTimeSpan Subtract(const wxDateTime& dt) const;
     inline wxTimeSpan operator-(const wxDateTime& dt2) const;
 

-    // conversion to/from text: all conversions from text return the pointer to
-    // the next character following the date specification (i.e. the one where
-    // the scan had to stop) or NULL on failure; for the versions taking
-    // wxString or wxCStrData, we don't know if the user code needs char* or
-    // wchar_t* pointer and so we return char* one for compatibility with the
-    // existing ANSI code and also return iterator in another output parameter
-    // (it will be equal to end if the entire string was parsed)
+    // conversion to/from text

     // ------------------------------------------------------------------------
 
     // ------------------------------------------------------------------------
 

+    // all conversions functions return true to indicate whether parsing
+    // succeeded or failed and fill in the provided end iterator, which must
+    // not be NULL, with the location of the character where the parsing
+    // stopped (this will be end() of the passed string if everything was
+    // parsed)
+

         // parse a string in RFC 822 format (found e.g. in mail headers and
         // having the form "Wed, 10 Feb 1999 19:07:07 +0100")
         // parse a string in RFC 822 format (found e.g. in mail headers and
         // having the form "Wed, 10 Feb 1999 19:07:07 +0100")

-    const char *ParseRfc822Date(const wxString& date,
-                                wxString::const_iterator *end = NULL);
-    const char *ParseRfc822Date(const wxCStrData& date,
-                                wxString::const_iterator *end = NULL)
-    {
-        return ParseRfc822Date(date.AsString(), end);
-    }
-
-    const wchar_t *ParseRfc822Date(const wchar_t* date)
-    {
-        return ReturnEndAsWidePtr(&wxDateTime::ParseRfc822Date, date);
-    }
-
-    const char *ParseRfc822Date(const char* date)
-    {
-        return ParseRfc822Date(wxString(date));
-    }
+    bool ParseRfc822Date(const wxString& date,
+                         wxString::const_iterator *end);

 
         // parse a date/time in the given format (see strptime(3)), fill in
         // the missing (in the string) fields with the values of dateDef (by
         // default, they will not change if they had valid values or will
         // default to Today() otherwise)
 
         // parse a date/time in the given format (see strptime(3)), fill in
         // the missing (in the string) fields with the values of dateDef (by
         // default, they will not change if they had valid values or will
         // default to Today() otherwise)

-
-        // notice that we unfortunately need all those overloads because we use
-        // the type of the date string to select the return value of the
-        // function: it's wchar_t if a wide string is passed for compatibility
-        // with the code doing "const wxChar *p = dt.ParseFormat(_T("..."))",
-        // but char* in all other cases for compatibility with ANSI build which
-        // allowed code like "const char *p = dt.ParseFormat("...")"
-        //
-        // so we need wchar_t overload and now passing s.c_str() as first
-        // argument is ambiguous because it's convertible to both wxString and
-        // wchar_t* and now it's passing char* which becomes ambiguous as it is
-        // convertible to both wxString and wxCStrData hence we need char*
-        // overload too
-        //
-        // and to make our life more miserable we also pay for having the
-        // optional dateDef parameter: as it's almost never used, we want to
-        // allow people to omit it when specifying the end iterator output
-        // parameter but we still have to allow specifying dateDef too, so we
-        // need another overload for this
-        //
-        // FIXME: all this mess could be avoided by using some class similar to
-        //        wxFormatString, i.e. remembering string [pointer] of any type
-        //        and convertible to either char* or wchar_t* as wxCStrData and
-        //        having only 1 (or 2, because of the last paragraph above)
-        //        overload taking it, see #9560
-    const char *ParseFormat(const wxString& date,
-                            const wxString& format = wxDefaultDateTimeFormat,
-                            const wxDateTime& dateDef = wxDefaultDateTime,
-                            wxString::const_iterator *end = NULL);
-
-    const char *ParseFormat(const wxString& date,
-                            const wxString& format,
-                            wxString::const_iterator *end)
+    bool ParseFormat(const wxString& date,
+                     const wxString& format,
+                     const wxDateTime& dateDef,
+                     wxString::const_iterator *end);
+
+    bool ParseFormat(const wxString& date,
+                     const wxString& format,
+                     wxString::const_iterator *end)

     {
         return ParseFormat(date, format, wxDefaultDateTime, end);
     }
 
     {
         return ParseFormat(date, format, wxDefaultDateTime, end);
     }
 

-    const char *ParseFormat(const wxCStrData& date,
-                            const wxString& format = wxDefaultDateTimeFormat,
-                            const wxDateTime& dateDef = wxDefaultDateTime,
-                            wxString::const_iterator *end = NULL)
-    {
-        return ParseFormat(date.AsString(), format, dateDef, end);
-    }
-
-    const wchar_t *ParseFormat(const wchar_t *date,
-                               const wxString& format = wxDefaultDateTimeFormat,
-                               const wxDateTime& dateDef = wxDefaultDateTime)
-    {
-        const wxString datestr(date);
-        wxString::const_iterator end;
-        if ( !ParseFormat(datestr, format, dateDef, &end) )
-            return NULL;
-
-        return date + (end - datestr.begin());
-    }
-
-    const char *ParseFormat(const char *date,
-                            const wxString& format = "%c",
-                            const wxDateTime& dateDef = wxDefaultDateTime)
+    bool ParseFormat(const wxString& date,
+                     wxString::const_iterator *end)

     {
     {

-        return ParseFormat(wxString(date), format, dateDef);
+        return ParseFormat(date, wxDefaultDateTimeFormat, wxDefaultDateTime, end);

     }
 
     }
 

-

         // parse a string containing date, time or both in ISO 8601 format
         //
         // notice that these functions are new in wx 3.0 and so we don't
         // parse a string containing date, time or both in ISO 8601 format
         //
         // notice that these functions are new in wx 3.0 and so we don't


@@ -1178,65 +1139,18 @@ public:
 
         // parse a string containing the date/time in "free" format, this
         // function will try to make an educated guess at the string contents
 
         // parse a string containing the date/time in "free" format, this
         // function will try to make an educated guess at the string contents

-    const char *ParseDateTime(const wxString& datetime,
-                              wxString::const_iterator *end = NULL);
-
-    const char *ParseDateTime(const wxCStrData& datetime,
-                              wxString::const_iterator *end = NULL)
-    {
-        return ParseDateTime(datetime.AsString(), end);
-    }
-
-    const wchar_t *ParseDateTime(const wchar_t *datetime)
-    {
-        return ReturnEndAsWidePtr(&wxDateTime::ParseDateTime, datetime);
-    }
-
-    const char *ParseDateTime(const char *datetime)
-    {
-        return ParseDateTime(wxString(datetime));
-    }
+    bool ParseDateTime(const wxString& datetime,
+                       wxString::const_iterator *end);

 
         // parse a string containing the date only in "free" format (less
         // flexible than ParseDateTime)
 
         // parse a string containing the date only in "free" format (less
         // flexible than ParseDateTime)

-    const char *ParseDate(const wxString& date,
-                          wxString::const_iterator *end = NULL);
-
-    const char *ParseDate(const wxCStrData& date,
-                          wxString::const_iterator *end = NULL)
-    {
-        return ParseDate(date.AsString(), end);
-    }
-
-    const wchar_t *ParseDate(const wchar_t *date)
-    {
-        return ReturnEndAsWidePtr(&wxDateTime::ParseDate, date);
-    }
-
-    const char *ParseDate(const char *date)
-    {
-        return ParseDate(wxString(date));
-    }
+    bool ParseDate(const wxString& date,
+                   wxString::const_iterator *end);

 
         // parse a string containing the time only in "free" format
 
         // parse a string containing the time only in "free" format

-    const char *ParseTime(const wxString& time,
-                          wxString::const_iterator *end = NULL);
-
-    const char *ParseTime(const wxCStrData& time,
-                          wxString::const_iterator *end = NULL)
-    {
-        return ParseTime(time.AsString(), end);
-    }
+    bool ParseTime(const wxString& time,
+                   wxString::const_iterator *end);

 
 

-    const wchar_t *ParseTime(const wchar_t *time)
-    {
-        return ReturnEndAsWidePtr(&wxDateTime::ParseTime, time);
-    }
-
-    const char *ParseTime(const char *time)
-    {
-        return ParseTime(wxString(time));
-    }

 
         // this function accepts strftime()-like format string (default
         // argument corresponds to the preferred date and time representation
 
         // this function accepts strftime()-like format string (default
         // argument corresponds to the preferred date and time representation


@@ -1260,6 +1174,52 @@ public:
     wxString FormatISOCombined(char sep = 'T') const
         { return FormatISODate() + sep + FormatISOTime(); }
 
     wxString FormatISOCombined(char sep = 'T') const
         { return FormatISODate() + sep + FormatISOTime(); }
 

+
+    // backwards compatible versions of the parsing functions: they return an
+    // object representing the next character following the date specification
+    // (i.e. the one where the scan had to stop) or a special NULL-like object
+    // on failure
+    //
+    // they're not deprecated because a lot of existing code uses them and
+    // there is no particular harm in keeping them but you should still prefer
+    // the versions above in the new code
+    wxAnyStrPtr ParseRfc822Date(const wxString& date)
+    {
+        wxString::const_iterator end;
+        return ParseRfc822Date(date, &end) ? wxAnyStrPtr(date, end)
+                                           : wxAnyStrPtr();
+    }
+
+    wxAnyStrPtr ParseFormat(const wxString& date,
+                            const wxString& format = wxDefaultDateTimeFormat,
+                            const wxDateTime& dateDef = wxDefaultDateTime)
+    {
+        wxString::const_iterator end;
+        return ParseFormat(date, format, dateDef, &end) ? wxAnyStrPtr(date, end)
+                                                        : wxAnyStrPtr();
+    }
+
+    wxAnyStrPtr ParseDateTime(const wxString& datetime)
+    {
+        wxString::const_iterator end;
+        return ParseDateTime(datetime, &end) ? wxAnyStrPtr(datetime, end)
+                                             : wxAnyStrPtr();
+    }
+
+    wxAnyStrPtr ParseDate(const wxString& date)
+    {
+        wxString::const_iterator end;
+        return ParseDate(date, &end) ? wxAnyStrPtr(date, end)
+                                     : wxAnyStrPtr();
+    }
+
+    wxAnyStrPtr ParseTime(const wxString& time)
+    {
+        wxString::const_iterator end;
+        return ParseTime(time, &end) ? wxAnyStrPtr(time, end)
+                                     : wxAnyStrPtr();
+    }
+

     // implementation
     // ------------------------------------------------------------------------
 
     // implementation
     // ------------------------------------------------------------------------
 


@@ -1270,7 +1230,7 @@ public:
     inline wxLongLong GetValue() const;
 
     // a helper function to get the current time_t
     inline wxLongLong GetValue() const;
 
     // a helper function to get the current time_t

-    static time_t GetTimeNow() { return time((time_t *)NULL); }
+    static time_t GetTimeNow() { return time(NULL); }

 
     // another one to get the current time broken down
     static struct tm *GetTmNow()
 
     // another one to get the current time broken down
     static struct tm *GetTmNow()


@@ -1283,23 +1243,6 @@ public:
     static struct tm *GetTmNow(struct tm *tmstruct);
 
 private:
     static struct tm *GetTmNow(struct tm *tmstruct);
 
 private:

-    // helper function for defining backward-compatible wrappers for code
-    // using wchar_t* pointer instead of wxString iterators
-    typedef
-    const char *(wxDateTime::*StringMethod)(const wxString& s,
-                                            wxString::const_iterator *end);
-
-    const wchar_t *ReturnEndAsWidePtr(StringMethod func, const wchar_t *p)
-    {
-        const wxString s(p);
-        wxString::const_iterator end;
-        if ( !(this->*func)(s, &end) )
-            return NULL;
-
-        return p + (end - s.begin());
-    }
-
-

     // the current country - as it's the same for all program objects (unless
     // it runs on a _really_ big cluster system :-), this is a static member:
     // see SetCountry() and GetCountry()
     // the current country - as it's the same for all program objects (unless
     // it runs on a _really_ big cluster system :-), this is a static member:
     // see SetCountry() and GetCountry()


@@ -1779,7 +1722,9 @@ protected:
 
 inline bool wxDateTime::IsInStdRange() const
 {
 
 inline bool wxDateTime::IsInStdRange() const
 {

-    return m_time >= 0l && (m_time / TIME_T_FACTOR) < LONG_MAX;
+    // currently we don't know what is the real type of time_t so prefer to err
+    // on the safe side and limit it to 32 bit values which is safe everywhere
+    return m_time >= 0l && (m_time / TIME_T_FACTOR) < wxINT32_MAX;

 }
 
 /* static */
 }
 
 /* static */


@@ -1839,7 +1784,7 @@ inline wxDateTime::wxDateTime(double jdn)
 
 inline wxDateTime& wxDateTime::Set(const Tm& tm)
 {
 
 inline wxDateTime& wxDateTime::Set(const Tm& tm)
 {

-    wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") );
+    wxASSERT_MSG( tm.IsValid(), wxT("invalid broken down date/time") );

 
     return Set(tm.mday, (Month)tm.mon, tm.year,
                tm.hour, tm.min, tm.sec, tm.msec);
 
     return Set(tm.mday, (Month)tm.mon, tm.year,
                tm.hour, tm.min, tm.sec, tm.msec);


@@ -1870,14 +1815,14 @@ inline wxDateTime::wxDateTime(wxDateTime_t day,
 
 inline wxLongLong wxDateTime::GetValue() const
 {
 
 inline wxLongLong wxDateTime::GetValue() const
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

 
     return m_time;
 }
 
 inline time_t wxDateTime::GetTicks() const
 {
 
     return m_time;
 }
 
 inline time_t wxDateTime::GetTicks() const
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

     if ( !IsInStdRange() )
     {
         return (time_t)-1;
     if ( !IsInStdRange() )
     {
         return (time_t)-1;


@@ -1945,21 +1890,21 @@ inline wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const
 
 inline bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const
 {
 
 inline bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const
 {

-    wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime"));

 
     return m_time == datetime.m_time;
 }
 
 inline bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const
 {
 
     return m_time == datetime.m_time;
 }
 
 inline bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const
 {

-    wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime"));

 
     return m_time < datetime.m_time;
 }
 
 inline bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const
 {
 
     return m_time < datetime.m_time;
 }
 
 inline bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const
 {

-    wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime"));

 
     return m_time > datetime.m_time;
 }
 
     return m_time > datetime.m_time;
 }


@@ -2016,14 +1961,14 @@ inline bool wxDateTime::IsEqualUpTo(const wxDateTime& dt,
 
 inline wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const
 {
 
 inline wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

 
     return wxDateTime(m_time + diff.GetValue());
 }
 
 inline wxDateTime& wxDateTime::Add(const wxTimeSpan& diff)
 {
 
     return wxDateTime(m_time + diff.GetValue());
 }
 
 inline wxDateTime& wxDateTime::Add(const wxTimeSpan& diff)
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

 
     m_time += diff.GetValue();
 
 
     m_time += diff.GetValue();
 


@@ -2037,14 +1982,14 @@ inline wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff)
 
 inline wxDateTime wxDateTime::Subtract(const wxTimeSpan& diff) const
 {
 
 inline wxDateTime wxDateTime::Subtract(const wxTimeSpan& diff) const
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

 
     return wxDateTime(m_time - diff.GetValue());
 }
 
 inline wxDateTime& wxDateTime::Subtract(const wxTimeSpan& diff)
 {
 
     return wxDateTime(m_time - diff.GetValue());
 }
 
 inline wxDateTime& wxDateTime::Subtract(const wxTimeSpan& diff)
 {

-    wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));

 
     m_time -= diff.GetValue();
 
 
     m_time -= diff.GetValue();
 


@@ -2058,7 +2003,7 @@ inline wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff)
 
 inline wxTimeSpan wxDateTime::Subtract(const wxDateTime& datetime) const
 {
 
 inline wxTimeSpan wxDateTime::Subtract(const wxDateTime& datetime) const
 {

-    wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
+    wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime"));

 
     return wxTimeSpan(GetValue() - datetime.GetValue());
 }
 
     return wxTimeSpan(GetValue() - datetime.GetValue());
 }