merge revision(s) 49788,49790: [Backport ruby#10904]

	* lib/time.rb (strptime): Support %s.%N.
	  [ruby-core:68301] [Bug ruby#10904] Patch by Sadayuki Furuhashi.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@51599 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: unak

ChangeLog

@@ -1,3 +1,8 @@
+Mon Aug 17 16:24:10 2015  Tanaka Akira  <[email protected]>
+
+	* lib/time.rb (strptime): Support %s.%N.
+	  [ruby-core:68301] [Bug #10904] Patch by Sadayuki Furuhashi.
+
 Mon Aug 17 16:22:28 2015  Nobuyoshi Nakada  <[email protected]>
 
 	* transcode.c (load_transcoder_entry): fix transcoder loading race

lib/time.rb

@@ -393,10 +393,16 @@ def strptime(date, format, now=self.now)
       d = Date._strptime(date, format)
       raise ArgumentError, "invalid strptime format - `#{format}'" unless d
       if seconds = d[:seconds]
+        if sec_fraction = d[:sec_fraction]
+          usec = sec_fraction * 1000000
+          usec *= -1 if seconds < 0
+        else
+          usec = 0
+        end
         if offset = d[:offset]
-          Time.at(seconds).localtime(offset)
+          Time.at(seconds, usec).localtime(offset)
         else
-          Time.at(seconds)
+          Time.at(seconds, usec)
         end
       else
         year = d[:year]

test/test_time.rb

@@ -404,6 +404,17 @@ def test_strptime
     assert_equal(3600, Time.strptime('0 +0100', '%s %z').utc_offset)
   end
 
+  def test_strptime_s_N
+    assert_equal(Time.at(1, 500000), Time.strptime("1.5", "%s.%N"))
+    assert_equal(Time.at(-2, 500000), Time.strptime("-1.5", "%s.%N"))
+    t = Time.strptime("1.000000000001", "%s.%N")
+    assert_equal(1, t.to_i)
+    assert_equal(Rational("0.000000000001"), t.subsec)
+    t = Time.strptime("-1.000000000001", "%s.%N")
+    assert_equal(-2, t.to_i)
+    assert_equal(1-Rational("0.000000000001"), t.subsec)
+  end
+
   def test_nsec
     assert_equal(123456789, Time.xmlschema("2000-01-01T00:00:00.123456789+00:00").tv_nsec)
     assert_equal(123456789, Time.parse("2000-01-01T00:00:00.123456789+00:00").tv_nsec)

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.1.7"
 #define RUBY_RELEASE_DATE "2015-08-17"
-#define RUBY_PATCHLEVEL 382
+#define RUBY_PATCHLEVEL 383
 
 #define RUBY_RELEASE_YEAR 2015
 #define RUBY_RELEASE_MONTH 8