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-rw-r--r--ChangeLog4
-rw-r--r--test/ruby/test_time.rb10
-rw-r--r--time.c5
3 files changed, 19 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 04d38b99e2..267c42ea9d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Feb 15 22:18:49 2010 Tanaka Akira <akr@fsij.org>
+
+ * time.c (time_add): propagate fixed time offset.
+
Mon Feb 15 17:42:20 2010 NARUSE, Yui <naruse@ruby-lang.org>
* signal.c (USE_SIGALTSTACK): NetBSD can't use sigaltstack(2)
diff --git a/test/ruby/test_time.rb b/test/ruby/test_time.rb
index 73afed3902..c583b4e873 100644
--- a/test/ruby/test_time.rb
+++ b/test/ruby/test_time.rb
@@ -27,6 +27,16 @@ class TestTime < Test::Unit::TestCase
assert_equal(Time.utc(2000, 3, 21, 3, 30) + (-3 * 3600),
Time.utc(2000, 3, 21, 0, 30))
assert_equal(0, (Time.at(1.1) + 0.9).usec)
+
+ assert((Time.utc(2000, 4, 1) + 24).utc?)
+ assert(!(Time.local(2000, 4, 1) + 24).utc?)
+
+ t = Time.new(2000, 4, 1, 0, 0, 0, "+01:00") + 24
+ assert(!t.utc?)
+ assert_equal(3600, t.utc_offset)
+ t = Time.new(2000, 4, 1, 0, 0, 0, "+02:00") + 24
+ assert(!t.utc?)
+ assert_equal(7200, t.utc_offset)
end
def test_time_subt()
diff --git a/time.c b/time.c
index 7bab3760a6..cf0d7d8c39 100644
--- a/time.c
+++ b/time.c
@@ -2909,6 +2909,11 @@ time_add(struct time_object *tobj, VALUE offset, int sign)
GetTimeval(result, tobj);
TIME_SET_UTC(tobj);
}
+ else if (TIME_FIXOFF_P(tobj)) {
+ VALUE off = tobj->vtm.utc_offset;
+ GetTimeval(result, tobj);
+ TIME_SET_FIXOFF(tobj, off);
+ }
return result;
}