Add files necessary to run Expat configure.

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

diff --git a/interface/wx/datetime.h b/interface/wx/datetime.h
index 01ef279dcfeb045d7afa976ec5117ae433178f88..f49315e693b819d8e4138d85ad896e7c18058bf6 100644 (file)
--- a/interface/wx/datetime.h
+++ b/interface/wx/datetime.h
@@ -482,7 +482,10 @@ public:
 
     /**
         Constructs the object from @a timet value holding the number of seconds
-        since Jan 1, 1970.
+        since Jan 1, 1970 UTC.
+
+        If @a timet is invalid, i.e. @code (time_t)-1 @endcode, wxDateTime
+        becomes invalid too, i.e. its IsValid() will return @false.
     */
     wxDateTime& Set(time_t timet);
     /**
@@ -665,8 +668,10 @@ public:
     unsigned short GetSecond(const TimeZone& tz = Local) const;
 
     /**
-        Returns the number of seconds since Jan 1, 1970. An assert failure will
-        occur if the date is not in the range covered by @c time_t type.
+        Returns the number of seconds since Jan 1, 1970 UTC.
+
+        An assert failure will occur if the date is not in the range covered by
+        @c time_t type, use GetValue() if you work with dates outside of it.
     */
     time_t GetTicks() const;
 
@@ -751,7 +756,7 @@ public:
 
     /**
         Returns @true if the date is equal to another one up to the given time
-        interval, i.e. if the absolute difference between the two dates is less
+        interval, i.e.\ if the absolute difference between the two dates is less
         than this interval.
     */
     bool IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const;
@@ -815,7 +820,7 @@ public:
     /**
         Adds the given date span to this object.
     */
-    wxDateTime Add(const wxDateSpan& diff);
+    wxDateTime& Add(const wxDateSpan& diff);
     /**
         Adds the given time span to this object.
     */
@@ -860,18 +865,39 @@ public:
         Adds the given date span to this object.
     */
     wxDateTime& operator+=(const wxDateSpan& diff);
+    /**
+        Adds the given date span to this object.
+    */
+    wxDateTime operator+(const wxDateSpan& ds) const;
     /**
         Subtracts the given date span from this object.
     */
     wxDateTime& operator-=(const wxDateSpan& diff);
+    /**
+        Subtracts the given date span from this object.
+    */
+    wxDateTime operator-(const wxDateSpan& ds) const;
     /**
         Adds the given time span to this object.
     */
     wxDateTime& operator+=(const wxTimeSpan& diff);
+    /**
+        Adds the given time span to this object.
+    */
+    wxDateTime operator+(const wxTimeSpan& ts) const;
     /**
         Subtracts the given time span from this object.
     */
     wxDateTime& operator-=(const wxTimeSpan& diff);
+    /**
+        Subtracts the given time span from this object.
+    */
+    wxDateTime operator-(const wxTimeSpan& ts) const;
+    /**
+        Subtracts another date from this one and returns the difference between
+        them as a wxTimeSpan.
+    */
+    wxTimeSpan operator-(const wxDateTime& dt2) const;
 
     //@}
 
@@ -1211,7 +1237,7 @@ public:
                                       WeekFlags flags = Monday_First);
 
     /**
-        Sets the date to the day number @a yday in the same year (i.e., unlike
+        Sets the date to the day number @a yday in the same year (i.e.\ unlike
         the other functions, this one does not use the current year). The day
         number should be in the range 1-366 for the leap years and 1-365 for
         the other ones.
@@ -1336,7 +1362,7 @@ public:
 
 
     /**
-        Converts the year in absolute notation (i.e. a number which can be
+        Converts the year in absolute notation (i.e.\ a number which can be
         negative, positive or zero) to the year in BC/AD notation. For the
         positive years, nothing is done, but the year 0 is year 1 BC and so for
         other years there is a difference of 1.
@@ -1378,7 +1404,7 @@ public:
                                  Country country = Country_Default);
 
     /**
-        Get the current century, i.e. first two digits of the year, in given
+        Get the current century, i.e.\ first two digits of the year, in given
         calendar (only Gregorian is currently supported).
     */
     static int GetCentury(int year);
@@ -1564,7 +1590,7 @@ public:
 
     /**
         Returns the object corresponding to the midnight of the current day
-        (i.e. the same as Now(), but the time part is set to 0).
+        (i.e.\ the same as Now(), but the time part is set to 0).
 
         @see Now()
     */
@@ -2013,7 +2039,7 @@ public:
     bool IsEqualTo(const wxTimeSpan& ts) const;
 
     /**
-        Compares two timespans: works with the absolute values, i.e. -2 hours
+        Compares two timespans: works with the absolute values, i.e.\ -2 hours
         is longer than 1 hour. Also, it will return @false if the timespans are
         equal in absolute value.
     */
@@ -2035,7 +2061,7 @@ public:
     bool IsPositive() const;
 
     /**
-        Compares two timespans: works with the absolute values, i.e. 1 hour is
+        Compares two timespans: works with the absolute values, i.e.\ 1 hour is
         shorter than -2 hours. Also, it will return @false if the timespans are
         equal in absolute value.
     */