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From w...@apache.org
Subject arrow git commit: ARROW-754: [GLib] Add garrow_array_is_null()
Date Sun, 02 Apr 2017 15:29:19 GMT
Repository: arrow
Updated Branches:
  refs/heads/master baf38e47a -> 7fec7d30c


ARROW-754: [GLib] Add garrow_array_is_null()

Author: Kouhei Sutou <kou@clear-code.com>

Closes #480 from kou/glib-support-array-is-null and squashes the following commits:

5c4259b [Kouhei Sutou] [GLib] Add garrow_array_is_null()


Project: http://git-wip-us.apache.org/repos/asf/arrow/repo
Commit: http://git-wip-us.apache.org/repos/asf/arrow/commit/7fec7d30
Tree: http://git-wip-us.apache.org/repos/asf/arrow/tree/7fec7d30
Diff: http://git-wip-us.apache.org/repos/asf/arrow/diff/7fec7d30

Branch: refs/heads/master
Commit: 7fec7d30c75dd8910522002bb6bb640330834b90
Parents: baf38e4
Author: Kouhei Sutou <kou@clear-code.com>
Authored: Sun Apr 2 11:29:14 2017 -0400
Committer: Wes McKinney <wes.mckinney@twosigma.com>
Committed: Sun Apr 2 11:29:14 2017 -0400

----------------------------------------------------------------------
 c_glib/arrow-glib/array.cpp | 14 ++++++++++++++
 c_glib/arrow-glib/array.h   |  2 ++
 c_glib/test/test-array.rb   |  9 +++++++++
 3 files changed, 25 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/arrow/blob/7fec7d30/c_glib/arrow-glib/array.cpp
----------------------------------------------------------------------
diff --git a/c_glib/arrow-glib/array.cpp b/c_glib/arrow-glib/array.cpp
index b084054..caf2eb5 100644
--- a/c_glib/arrow-glib/array.cpp
+++ b/c_glib/arrow-glib/array.cpp
@@ -136,6 +136,20 @@ garrow_array_class_init(GArrowArrayClass *klass)
 }
 
 /**
+ * garrow_array_is_null:
+ * @array: A #GArrowArray.
+ * @i: The index of the target value.
+ *
+ * Returns: Whether the i-th value is null or not.
+ */
+gboolean
+garrow_array_is_null(GArrowArray *array, gint64 i)
+{
+  auto arrow_array = garrow_array_get_raw(array);
+  return arrow_array->IsNull(i);
+}
+
+/**
  * garrow_array_get_length:
  * @array: A #GArrowArray.
  *

http://git-wip-us.apache.org/repos/asf/arrow/blob/7fec7d30/c_glib/arrow-glib/array.h
----------------------------------------------------------------------
diff --git a/c_glib/arrow-glib/array.h b/c_glib/arrow-glib/array.h
index 6467db5..957b441 100644
--- a/c_glib/arrow-glib/array.h
+++ b/c_glib/arrow-glib/array.h
@@ -57,6 +57,8 @@ struct _GArrowArrayClass
 
 GType          garrow_array_get_type    (void) G_GNUC_CONST;
 
+gboolean       garrow_array_is_null     (GArrowArray *array,
+                                         gint64 i);
 gint64         garrow_array_get_length  (GArrowArray *array);
 gint64         garrow_array_get_offset  (GArrowArray *array);
 gint64         garrow_array_get_n_nulls (GArrowArray *array);

http://git-wip-us.apache.org/repos/asf/arrow/blob/7fec7d30/c_glib/test/test-array.rb
----------------------------------------------------------------------
diff --git a/c_glib/test/test-array.rb b/c_glib/test/test-array.rb
index c427f02..08908b0 100644
--- a/c_glib/test/test-array.rb
+++ b/c_glib/test/test-array.rb
@@ -16,6 +16,15 @@
 # under the License.
 
 class TestArray < Test::Unit::TestCase
+  def test_is_null
+    builder = Arrow::BooleanArrayBuilder.new
+    builder.append_null
+    builder.append(true)
+    array = builder.finish
+    assert_equal([true, false],
+                 array.length.times.collect {|i| array.null?(i)})
+  end
+
   def test_length
     builder = Arrow::BooleanArrayBuilder.new
     builder.append(true)


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