X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cb1ef83399add5c5fecc729a2a57d715f0601f97..b6428abaa5ac53c69c6113b86c0a0b8b05b93df7:/include/wx/datetime.h?ds=sidebyside

diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index c40a90ee8c..15f344cbf8 100644
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -13,10 +13,6 @@
 #ifndef _WX_DATETIME_H
 #define _WX_DATETIME_H
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "datetime.h"
-#endif
-
 #include "wx/defs.h"
 
 #if wxUSE_DATETIME
@@ -56,6 +52,27 @@ class WXDLLIMPEXP_BASE wxDateSpan;
  *   5. wxDateTimeHolidayAuthority for Easter and other christian feasts
  */
 
+/* Two wrapper functions for thread safety */
+#ifdef HAVE_LOCALTIME_R
+#define wxLocaltime_r localtime_r
+#else
+struct tm *wxLocaltime_r(const time_t*, struct tm*);
+#if wxUSE_THREADS && !defined(__WINDOWS__) && !defined(__WATCOMC__)
+     // On Windows, localtime _is_ threadsafe!
+#warning using pseudo thread-safe wrapper for localtime to emulate localtime_r
+#endif
+#endif
+
+#ifdef HAVE_GMTIME_R
+#define wxGmtime_r gmtime_r
+#else
+struct tm *wxGmtime_r(const time_t*, struct tm*);
+#if wxUSE_THREADS && !defined(__WINDOWS__) && !defined(__WATCOMC__)
+     // On Windows, gmtime _is_ threadsafe!
+#warning using pseudo thread-safe wrapper for gmtime to emulate gmtime_r
+#endif
+#endif
+
 /*
   The three (main) classes declared in this header represent:
 
@@ -486,7 +503,7 @@ public:
     static bool IsLeapYear(int year = Inv_Year, Calendar cal = Gregorian);
 
         // get the century (19 for 1999, 20 for 2000 and -5 for 492 BC)
-    static int GetCentury(int year = Inv_Year);
+    static int GetCentury(int year);
 
         // returns the number of days in this year (356 or 355 for Gregorian
         // calendar usually :-)
@@ -687,6 +704,7 @@ public:
                                      Month month = Inv_Month,
                                      int year = Inv_Year);
 
+#if WXWIN_COMPATIBILITY_2_6
         // sets the date to the given day of the given week in the year,
         // returns true on success and false if given date doesn't exist (e.g.
         // numWeek is > 53)
@@ -699,6 +717,7 @@ public:
     wxDEPRECATED( wxDateTime GetWeek(wxDateTime_t numWeek,
                                      WeekDay weekday = Mon,
                                      WeekFlags flags = Monday_First) const );
+#endif // WXWIN_COMPATIBILITY_2_6
 
         // returns the date corresponding to the given week day of the given
         // week (in ISO notation) of the specified year
@@ -757,26 +776,38 @@ public:
         //      religious holidays (Easter...) or moon/solar eclipses? Some
         //      algorithms can be found in the calendar FAQ
 
-    // timezone stuff: a wxDateTime object constructed using given
-    // day/month/year/hour/min/sec values correspond to this moment in local
-    // time. Using the functions below, it may be converted to another time
-    // zone (for example, the Unix epoch is wxDateTime(1, Jan, 1970).ToGMT())
+
+    // Timezone stuff: a wxDateTime object constructed using given
+    // day/month/year/hour/min/sec values is interpreted as this moment in
+    // local time. Using the functions below, it may be converted to another
+    // time zone (e.g., the Unix epoch is wxDateTime(1, Jan, 1970).ToGMT()).
     //
-    // these functions try to handle DST internally, but there is no magical
+    // These functions try to handle DST internally, but there is no magical
     // way to know all rules for it in all countries in the world, so if the
     // program can handle it itself (or doesn't want to handle it at all for
     // whatever reason), the DST handling can be disabled with noDST.
-    //
-    // Converting to the local time zone doesn't do anything.
     // ------------------------------------------------------------------------
 
         // transform to any given timezone
     inline wxDateTime ToTimezone(const TimeZone& tz, bool noDST = false) const;
     wxDateTime& MakeTimezone(const TimeZone& tz, bool noDST = false);
 
-        // transform to GMT/UTC
-    wxDateTime ToGMT(bool noDST = false) const { return ToTimezone(GMT0, noDST); }
-    wxDateTime& MakeGMT(bool noDST = false) { return MakeTimezone(GMT0, noDST); }
+        // interpret current value as being in another timezone and transform
+        // it to local one
+    inline wxDateTime FromTimezone(const TimeZone& tz, bool noDST = false) const;
+    wxDateTime& MakeFromTimezone(const TimeZone& tz, bool noDST = false);
+
+        // transform to/from GMT/UTC
+    wxDateTime ToUTC(bool noDST = false) const { return ToTimezone(UTC, noDST); }
+    wxDateTime& MakeUTC(bool noDST = false) { return MakeTimezone(UTC, noDST); }
+
+    wxDateTime ToGMT(bool noDST = false) const { return ToUTC(noDST); }
+    wxDateTime& MakeGMT(bool noDST = false) { return MakeUTC(noDST); }
+
+    wxDateTime FromUTC(bool noDST = false) const
+        { return FromTimezone(UTC, noDST); }
+    wxDateTime& MakeFromUTC(bool noDST = false)
+        { return MakeFromTimezone(UTC, noDST); }
 
         // is daylight savings time in effect at this moment according to the
         // rules of the specified country?
@@ -785,6 +816,7 @@ public:
         // the information is not available (this is compatible with ANSI C)
     int IsDST(Country country = Country_Default) const;
 
+
     // accessors: many of them take the timezone parameter which indicates the
     // timezone for which to make the calculations and the default value means
     // to do it for the current timezone of this machine (even if the function
@@ -806,6 +838,9 @@ public:
         // if the value is out of range
     inline time_t GetTicks() const;
 
+        // get the century, same as GetCentury(GetYear())
+    int GetCentury(const TimeZone& tz = Local) const
+            { return GetCentury(GetYear(tz)); }
         // get the year (returns Inv_Year if date is invalid)
     int GetYear(const TimeZone& tz = Local) const
             { return GetTm(tz).year; }
@@ -891,6 +926,42 @@ public:
         // are these two objects equal up to given timespan?
     inline bool IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const;
 
+    inline bool operator<(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() < dt.GetValue();
+    }
+
+    inline bool operator<=(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() <= dt.GetValue();
+    }
+
+    inline bool operator>(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() > dt.GetValue();
+    }
+
+    inline bool operator>=(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() >= dt.GetValue();
+    }
+
+    inline bool operator==(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() == dt.GetValue();
+    }
+
+    inline bool operator!=(const wxDateTime& dt) const
+    {
+        wxASSERT_MSG( IsValid() && dt.IsValid(), _T("invalid wxDateTime") );
+        return GetValue() != dt.GetValue();
+    }
+
     // arithmetics with dates (see also below for more operators)
     // ------------------------------------------------------------------------
 
@@ -900,6 +971,12 @@ public:
     inline wxDateTime& Add(const wxTimeSpan& diff);
         // add a time span (positive or negative)
     inline wxDateTime& operator+=(const wxTimeSpan& diff);
+    inline wxDateTime operator+(const wxTimeSpan& ts) const
+    {
+        wxDateTime dt(*this);
+        dt.Add(ts);
+        return dt;
+    }
 
         // return the difference of the date with a time span
     inline wxDateTime Subtract(const wxTimeSpan& diff) const;
@@ -907,6 +984,12 @@ public:
     inline wxDateTime& Subtract(const wxTimeSpan& diff);
         // subtract a time span (positive or negative)
     inline wxDateTime& operator-=(const wxTimeSpan& diff);
+    inline wxDateTime operator-(const wxTimeSpan& ts) const
+    {
+        wxDateTime dt(*this);
+        dt.Subtract(ts);
+        return dt;
+    }
 
         // return the sum of the date with a date span
     inline wxDateTime Add(const wxDateSpan& diff) const;
@@ -914,6 +997,12 @@ public:
     wxDateTime& Add(const wxDateSpan& diff);
         // add a date span (positive or negative)
     inline wxDateTime& operator+=(const wxDateSpan& diff);
+    inline wxDateTime operator+(const wxDateSpan& ds) const
+    {
+        wxDateTime dt(*this);
+        dt.Add(ds);
+        return dt;
+    }
 
         // return the difference of the date with a date span
     inline wxDateTime Subtract(const wxDateSpan& diff) const;
@@ -921,9 +1010,16 @@ public:
     inline wxDateTime& Subtract(const wxDateSpan& diff);
         // subtract a date span (positive or negative)
     inline wxDateTime& operator-=(const wxDateSpan& diff);
+    inline wxDateTime operator-(const wxDateSpan& ds) const
+    {
+        wxDateTime dt(*this);
+        dt.Subtract(ds);
+        return dt;
+    }
 
         // return the difference between two dates
     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
@@ -985,6 +1081,9 @@ public:
         return localtime(&t);
     }
 
+    // get current time using thread-safe function
+    static struct tm *GetTmNow(struct tm *tmstruct);
+
 private:
     // 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:
@@ -1018,8 +1117,12 @@ public:
     // constructors
     // ------------------------------------------------------------------------
 
+        // return the timespan for the given number of milliseconds
+    static wxTimeSpan Milliseconds(wxLongLong ms) { return wxTimeSpan(0, 0, 0, ms); }
+    static wxTimeSpan Millisecond() { return Milliseconds(1); }
+
         // return the timespan for the given number of seconds
-    static wxTimeSpan Seconds(long sec) { return wxTimeSpan(0, 0, sec); }
+    static wxTimeSpan Seconds(wxLongLong sec) { return wxTimeSpan(0, 0, sec); }
     static wxTimeSpan Second() { return Seconds(1); }
 
         // return the timespan for the given number of minutes
@@ -1046,8 +1149,8 @@ public:
         // milliseconds)
     inline wxTimeSpan(long hours,
                       long minutes = 0,
-                      long seconds = 0,
-                      long milliseconds = 0);
+                      wxLongLong seconds = 0,
+                      wxLongLong milliseconds = 0);
 
         // default copy ctor is ok
 
@@ -1062,6 +1165,10 @@ public:
     inline wxTimeSpan& Add(const wxTimeSpan& diff);
         // add two timespans together
     wxTimeSpan& operator+=(const wxTimeSpan& diff) { return Add(diff); }
+    inline wxTimeSpan operator+(const wxTimeSpan& ts) const
+    {
+        return wxTimeSpan(GetValue() + ts.GetValue());
+    }
 
         // return the difference of two timespans
     inline wxTimeSpan Subtract(const wxTimeSpan& diff) const;
@@ -1069,6 +1176,10 @@ public:
     inline wxTimeSpan& Subtract(const wxTimeSpan& diff);
         // subtract another timespan
     wxTimeSpan& operator-=(const wxTimeSpan& diff) { return Subtract(diff); }
+    inline wxTimeSpan operator-(const wxTimeSpan& ts)
+    {
+        return wxTimeSpan(GetValue() - ts.GetValue());
+    }
 
         // multiply timespan by a scalar
     inline wxTimeSpan Multiply(int n) const;
@@ -1076,8 +1187,12 @@ public:
     inline wxTimeSpan& Multiply(int n);
         // multiply timespan by a scalar
     wxTimeSpan& operator*=(int n) { return Multiply(n); }
+    inline wxTimeSpan operator*(int n) const
+    {
+        return wxTimeSpan(*this).Multiply(n);
+    }
 
-        // return this timespan with inversed sign
+        // return this timespan with opposite sign
     wxTimeSpan Negate() const { return wxTimeSpan(-GetValue()); }
         // negate the value of the timespan
     wxTimeSpan& Neg() { m_diff = -GetValue(); return *this; }
@@ -1116,6 +1231,36 @@ public:
         // timespans are equal in absolute value.
     bool IsShorterThan(const wxTimeSpan& t) const { return !IsLongerThan(t); }
 
+    inline bool operator<(const wxTimeSpan &ts) const
+    {
+        return GetValue() < ts.GetValue();
+    }
+
+    inline bool operator<=(const wxTimeSpan &ts) const
+    {
+        return GetValue() <= ts.GetValue();
+    }
+
+    inline bool operator>(const wxTimeSpan &ts) const
+    {
+        return GetValue() > ts.GetValue();
+    }
+
+    inline bool operator>=(const wxTimeSpan &ts) const
+    {
+        return GetValue() >= ts.GetValue();
+    }
+
+    inline bool operator==(const wxTimeSpan &ts) const
+    {
+        return GetValue() == ts.GetValue();
+    }
+
+    inline bool operator!=(const wxTimeSpan &ts) const
+    {
+        return GetValue() != ts.GetValue();
+    }
+
     // breaking into days, hours, minutes and seconds
     // ------------------------------------------------------------------------
 
@@ -1259,6 +1404,13 @@ public:
     inline wxDateSpan& Add(const wxDateSpan& other);
         // add another wxDateSpan to us
     inline wxDateSpan& operator+=(const wxDateSpan& other);
+    inline wxDateSpan operator+(const wxDateSpan& ds) const
+    {
+        return wxDateSpan(GetYears() + ds.GetYears(),
+                          GetMonths() + ds.GetMonths(),
+                          GetWeeks() + ds.GetWeeks(),
+                          GetDays() + ds.GetDays());
+    }
 
         // return difference of two date spans
     inline wxDateSpan Subtract(const wxDateSpan& other) const;
@@ -1266,6 +1418,13 @@ public:
     inline wxDateSpan& Subtract(const wxDateSpan& other);
         // subtract another wxDateSpan from us
     inline wxDateSpan& operator-=(const wxDateSpan& other);
+    inline wxDateSpan operator-(const wxDateSpan& ds) const
+    {
+        return wxDateSpan(GetYears() - ds.GetYears(),
+                          GetMonths() - ds.GetMonths(),
+                          GetWeeks() - ds.GetWeeks(),
+                          GetDays() - ds.GetDays());
+    }
 
         // return a copy of this time span with changed sign
     inline wxDateSpan Negate() const;
@@ -1280,6 +1439,23 @@ public:
     inline wxDateSpan& Multiply(int factor);
         // multiply all components by a (signed) number
     inline wxDateSpan& operator*=(int factor) { return Multiply(factor); }
+    inline wxDateSpan operator*(int n) const
+    {
+        return wxDateSpan(*this).Multiply(n);
+    }
+
+    // ds1 == d2 if and only if for every wxDateTime t t + ds1 == t + ds2
+    inline bool operator==(const wxDateSpan& ds) const
+    {
+        return GetYears() == ds.GetYears() &&
+               GetMonths() == ds.GetMonths() &&
+               GetTotalDays() == ds.GetTotalDays();
+    }
+
+    inline bool operator!=(const wxDateSpan& ds) const
+    {
+        return !(*this == ds);
+    }
 
 private:
     int m_years,
@@ -1394,7 +1570,8 @@ inline bool wxDateTime::IsInStdRange() const
 /* static */
 inline wxDateTime wxDateTime::Now()
 {
-    return wxDateTime(*GetTmNow());
+    struct tm tmstruct;
+    return wxDateTime(*GetTmNow(&tmstruct));
 }
 
 /* static */
@@ -1449,7 +1626,8 @@ inline wxDateTime& wxDateTime::Set(const Tm& tm)
 {
     wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") );
 
-    return Set(tm.mday, (Month)tm.mon, tm.year, tm.hour, tm.min, tm.sec);
+    return Set(tm.mday, (Month)tm.mon, tm.year,
+               tm.hour, tm.min, tm.sec, tm.msec);
 }
 
 inline wxDateTime::wxDateTime(wxDateTime_t hour,
@@ -1670,6 +1848,11 @@ inline wxTimeSpan wxDateTime::Subtract(const wxDateTime& datetime) const
     return wxTimeSpan(GetValue() - datetime.GetValue());
 }
 
+inline wxTimeSpan wxDateTime::operator-(const wxDateTime& dt2) const
+{
+    return this->Subtract(dt2);
+}
+
 inline wxDateTime wxDateTime::Add(const wxDateSpan& diff) const
 {
     return wxDateTime(*this).Add(diff);
@@ -1699,20 +1882,26 @@ inline wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff)
 // wxDateTime and timezones
 // ----------------------------------------------------------------------------
 
-inline wxDateTime wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz,
-                                         bool noDST) const
+inline wxDateTime
+wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz, bool noDST) const
 {
     MODIFY_AND_RETURN( MakeTimezone(tz, noDST) );
 }
 
+inline wxDateTime
+wxDateTime::FromTimezone(const wxDateTime::TimeZone& tz, bool noDST) const
+{
+    MODIFY_AND_RETURN( MakeFromTimezone(tz, noDST) );
+}
+
 // ----------------------------------------------------------------------------
 // wxTimeSpan construction
 // ----------------------------------------------------------------------------
 
 inline wxTimeSpan::wxTimeSpan(long hours,
                               long minutes,
-                              long seconds,
-                              long milliseconds)
+                              wxLongLong seconds,
+                              wxLongLong milliseconds)
 {
     // assign first to avoid precision loss
     m_diff = hours;
@@ -1891,204 +2080,17 @@ inline wxDateSpan wxDateSpan::Subtract(const wxDateSpan& other) const
 // binary operators
 // ============================================================================
 
-// ----------------------------------------------------------------------------
-// wxDateTime operators
-// ----------------------------------------------------------------------------
-
-// arithmetics
-// -----------
-
-// no need to check for validity - the member functions we call will do it
-
-inline wxDateTime WXDLLIMPEXP_BASE operator+(const wxDateTime& dt,
-                                        const wxTimeSpan& ts)
-{
-    return dt.Add(ts);
-}
-
-inline wxDateTime WXDLLIMPEXP_BASE operator-(const wxDateTime& dt,
-                                        const wxTimeSpan& ts)
-{
-    return dt.Subtract(ts);
-}
-
-inline wxDateTime WXDLLIMPEXP_BASE operator+(const wxDateTime& dt,
-                                        const wxDateSpan& ds)
-{
-    return dt.Add(ds);
-}
-
-inline wxDateTime WXDLLIMPEXP_BASE operator-(const wxDateTime& dt,
-                                        const wxDateSpan& ds)
-{
-    return dt.Subtract(ds);
-}
-
-inline wxTimeSpan WXDLLIMPEXP_BASE operator-(const wxDateTime& dt1,
-                                        const wxDateTime& dt2)
-{
-    return dt1.Subtract(dt2);
-}
-
-// comparison
-// ----------
-
-inline bool WXDLLIMPEXP_BASE operator<(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() < t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator<=(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() <= t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator>(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() > t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator>=(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() >= t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator==(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() == t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator!=(const wxDateTime& t1, const wxDateTime& t2)
-{
-    wxASSERT_MSG( t1.IsValid() && t2.IsValid(), _T("invalid wxDateTime") );
-
-    return t1.GetValue() != t2.GetValue();
-}
-
 // ----------------------------------------------------------------------------
 // wxTimeSpan operators
 // ----------------------------------------------------------------------------
 
-// arithmetics
-// -----------
-
-inline wxTimeSpan WXDLLIMPEXP_BASE operator+(const wxTimeSpan& ts1,
-                                        const wxTimeSpan& ts2)
-{
-    return wxTimeSpan(ts1.GetValue() + ts2.GetValue());
-}
-
-inline wxTimeSpan WXDLLIMPEXP_BASE operator-(const wxTimeSpan& ts1,
-                                        const wxTimeSpan& ts2)
-{
-    return wxTimeSpan(ts1.GetValue() - ts2.GetValue());
-}
-
-inline wxTimeSpan WXDLLIMPEXP_BASE operator*(const wxTimeSpan& ts, int n)
-{
-    return wxTimeSpan(ts).Multiply(n);
-}
-
-inline wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts)
-{
-    return wxTimeSpan(ts).Multiply(n);
-}
-
-// comparison
-// ----------
-
-inline bool WXDLLIMPEXP_BASE operator<(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() < t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator<=(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() <= t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator>(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() > t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator>=(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() >= t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator==(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() == t2.GetValue();
-}
-
-inline bool WXDLLIMPEXP_BASE operator!=(const wxTimeSpan &t1, const wxTimeSpan &t2)
-{
-    return t1.GetValue() != t2.GetValue();
-}
+wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts);
 
 // ----------------------------------------------------------------------------
 // wxDateSpan
 // ----------------------------------------------------------------------------
 
-// comparison
-// ----------
-
-// ds1 == d2 if and only if for every wxDateTime t t + ds1 == t + ds2
-inline WXDLLIMPEXP_BASE bool operator==(const wxDateSpan& ds1,
-                                   const wxDateSpan& ds2)
-{
-    return ds1.GetYears() == ds2.GetYears() &&
-           ds1.GetMonths() == ds2.GetMonths() &&
-           ds1.GetTotalDays() == ds2.GetTotalDays();
-}
-
-inline WXDLLIMPEXP_BASE bool operator!=(const wxDateSpan& ds1,
-                                   const wxDateSpan& ds2)
-{
-  return !(ds1 == ds2);
-}
-
-// arithmetics
-// -----------
-
-inline WXDLLIMPEXP_BASE wxDateSpan operator+(const wxDateSpan& ds1,
-                                        const wxDateSpan& ds2)
-{
-    return wxDateSpan(ds1.GetYears() + ds2.GetYears(),
-                      ds1.GetMonths() + ds2.GetMonths(),
-                      ds1.GetWeeks() + ds2.GetWeeks(),
-                      ds1.GetDays() + ds2.GetDays());
-}
-
-inline WXDLLIMPEXP_BASE wxDateSpan operator-(const wxDateSpan& ds1,
-                                        const wxDateSpan& ds2)
-{
-    return wxDateSpan(ds1.GetYears() - ds2.GetYears(),
-                      ds1.GetMonths() - ds2.GetMonths(),
-                      ds1.GetWeeks() - ds2.GetWeeks(),
-                      ds1.GetDays() - ds2.GetDays());
-}
-
-inline WXDLLIMPEXP_BASE wxDateSpan operator*(const wxDateSpan& ds, int n)
-{
-    return wxDateSpan(ds).Multiply(n);
-}
-
-inline WXDLLIMPEXP_BASE wxDateSpan operator*(int n, const wxDateSpan& ds)
-{
-    return wxDateSpan(ds).Multiply(n);
-}
+wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds);
 
 // ============================================================================
 // other helper functions
@@ -2100,37 +2102,10 @@ inline WXDLLIMPEXP_BASE wxDateSpan operator*(int n, const wxDateSpan& ds)
 //  for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 // ----------------------------------------------------------------------------
 
-inline WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m)
-{
-    wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") );
-
-    // no wrapping or the for loop above would never end!
-    m = (wxDateTime::Month)(m + 1);
-}
-
-inline WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m)
-{
-    wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") );
-
-    m = m == wxDateTime::Jan ? wxDateTime::Inv_Month
-                             : (wxDateTime::Month)(m - 1);
-}
-
-inline WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd)
-{
-    wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") );
-
-    // no wrapping or the for loop above would never end!
-    wd = (wxDateTime::WeekDay)(wd + 1);
-}
-
-inline WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd)
-{
-    wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") );
-
-    wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay
-                               : (wxDateTime::WeekDay)(wd - 1);
-}
+WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m);
+WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m);
+WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd);
+WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd);
 
 #endif // wxUSE_DATETIME