X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftime%2Fdatetime.cpp;h=c77796f7bc0bd8c8cd378d739fb5a458f006a491;hb=87edba02a23b1338934e36fac407966b25fcf811;hp=d609b2907cc6f1a10f81db862e7154c9d52332bd;hpb=c0319d7fb558683afdcf523660a40355b6bf0955;p=libs%2Fcore.git

diff --git a/source/time/datetime.cpp b/source/time/datetime.cpp
index d609b29..c77796f 100644
--- a/source/time/datetime.cpp
+++ b/source/time/datetime.cpp
@@ -1,16 +1,8 @@
-/* $Id$
-
-This file is part of libmspcore     
-Copyright © 2006  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <cstdlib>
 #include <stdexcept>
 #include <msp/strings/format.h>
 #include "datetime.h"
 #include "timestamp.h"
-#include "units.h"
 
 using namespace std;
 
@@ -128,7 +120,7 @@ void DateTime::add_days(int days)
 	}
 
 	// Fudge factor for leap day
-	int fudge = (month<=2)?1:0;
+	int fudge = (month<=2) ? 1 : 0;
 
 	// (Almost) every 4 year cycle has 1 leap year and 3 normal years
 	unsigned cycles = days/1461;
@@ -150,12 +142,12 @@ void DateTime::add_days(int days)
 
 	new_year += cycles;
 
-	if((year-fudge)%4+cycles>=4)
+	if((year-fudge)%4+cycles>=4 && (new_year%100>=4 || new_year%400<4))
 	{
 		// We passed a leap year - decrement days
 		if(days==0)
 		{
-			days = is_leap_year(new_year-fudge)?365:364;
+			days = is_leap_year(new_year-fudge) ? 365 : 364;
 			--new_year;
 		}
 		else
@@ -186,7 +178,7 @@ void DateTime::set_timezone(const TimeZone &tz)
 
 void DateTime::convert_timezone(const TimeZone &tz)
 {
-	add_raw((zone.get_offset()-tz.get_offset()).raw());
+	add_raw((tz.get_offset()-zone.get_offset()).raw());
 	zone = tz;
 }
 
@@ -296,7 +288,7 @@ string DateTime::format_rfc3339() const
 	if(const TimeDelta &offs = zone.get_offset())
 	{
 		int m = abs(static_cast<int>(offs/Time::min));
-		result += Msp::format("%c%02d:%02d", (offs<zero ? '+' : '-'), m/60, m%60);
+		result += Msp::format("%c%02d:%02d", (offs<zero ? '-' : '+'), m/60, m%60);
 	}
 	else
 		result += 'Z';
@@ -313,10 +305,10 @@ void DateTime::add_raw(RawTime raw)
 		raw += 86400000000LL;
 	}
 
-	usec+=raw%1000000; raw /= 1000000;
-	second+=raw%60;    raw /= 60;
-	minute+=raw%60;    raw /= 60;
-	hour+=raw%24;      raw /= 24;
+	usec += raw%1000000; raw /= 1000000;
+	second += raw%60;    raw /= 60;
+	minute += raw%60;    raw /= 60;
+	hour += raw%24;      raw /= 24;
 
 	add_days(days);
 	normalize();