implemented to_a to CvCircle32f, CvPoint, CvPoint2D32f, CvPoint3D32f, CvScalar, CvSize, CvSize2D32f, CvTermCriteria, CvTwoPoints, CvVector, and added tests for them

ext/cvcircle32f.cpp

@@ -45,6 +45,7 @@ define_ruby_class()
 
   //rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 VALUE

ext/cvpoint.cpp

@@ -54,6 +54,7 @@ define_ruby_class()
 
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

ext/cvpoint2d32f.cpp

@@ -54,6 +54,7 @@ define_ruby_class()
 
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

ext/cvpoint3d32f.cpp

@@ -58,6 +58,7 @@ define_ruby_class()
 
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

ext/cvscalar.cpp

@@ -66,6 +66,7 @@ define_ruby_class()
   
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 
   rb_define_const(rb_klass, "Black", cCvScalar::new_object(cvScalar(0x0,0x0,0x0)));
   rb_define_const(rb_klass, "Silver", cCvScalar::new_object(cvScalar(0x0c,0x0c,0x0c)));

ext/cvsize.cpp

@@ -54,6 +54,7 @@ define_ruby_class()
   
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

ext/cvsize2d32f.cpp

@@ -53,6 +53,7 @@ define_ruby_class()
   rb_define_method(rb_klass, "height=", RUBY_METHOD_FUNC(rb_set_height), 1);
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

ext/cvtermcriteria.cpp

@@ -53,6 +53,7 @@ define_ruby_class()
   rb_define_alias(rb_klass, "epsilon", "eps");
   rb_define_alias(rb_klass, "epsilon=", "eps=");
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 VALUE

ext/cvtwopoints.cpp

@@ -48,6 +48,7 @@ define_ruby_class()
   rb_define_method(rb_klass, "point1", RUBY_METHOD_FUNC(rb_point1), 0);
   rb_define_method(rb_klass, "point2", RUBY_METHOD_FUNC(rb_point2), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 VALUE

ext/cvvector.cpp

@@ -47,6 +47,7 @@ define_ruby_class()
 
   rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
   rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
+  rb_define_alias(rb_klass, "to_a", "to_ary");
 }
 
 /*

test/test_cvpoint.rb

@@ -64,6 +64,11 @@ class TestCvPoint < OpenCVTestCase
     a = CvPoint.new(10, 20).to_ary
     assert_equal(10, a[0])
     assert_equal(20, a[1])
+
+    # Alias
+    a = CvPoint.new(10, 20).to_a
+    assert_equal(10, a[0])
+    assert_equal(20, a[1])
   end
 end
 

test/test_cvpoint2d32f.rb

@@ -64,6 +64,11 @@ class TestCvPoint2D32f < OpenCVTestCase
     a = CvPoint2D32f.new(1.1, 2.2).to_ary
     assert_in_delta(1.1, a[0], 0.001)
     assert_in_delta(2.2, a[1], 0.001)
+
+    # Alias
+    a = CvPoint2D32f.new(1.1, 2.2).to_a
+    assert_in_delta(1.1, a[0], 0.001)
+    assert_in_delta(2.2, a[1], 0.001)
   end
 end
 

test/test_cvpoint3d32f.rb

@@ -78,6 +78,12 @@ class TestCvPoint3D32f < OpenCVTestCase
     assert_in_delta(1.1, a[0], 0.001)
     assert_in_delta(2.2, a[1], 0.001)
     assert_in_delta(3.3, a[2], 0.001)
+
+    # Alias
+    a = CvPoint3D32f.new(1.1, 2.2, 3.3).to_a
+    assert_in_delta(1.1, a[0], 0.001)
+    assert_in_delta(2.2, a[1], 0.001)
+    assert_in_delta(3.3, a[2], 0.001)
   end
 end
 

test/test_cvscalar.rb

@@ -83,8 +83,11 @@ class TestCvScalar < OpenCVTestCase
     [[10, 20, 30, 40], [0.1, 0.2, 0.3, 0.4]].each { |a|
       s = CvScalar.new(*a)
       b = s.to_ary
-      assert_equal(Array, b.class)
-      assert_in_delta(a, b, 0.01)
+      c = s.to_a # Alias
+      [b, c].each { |x|
+        assert_equal(Array, x.class)
+        assert_in_delta(a, x, 0.01)
+      }
     }
   end
 

test/test_cvsize.rb

@@ -65,6 +65,11 @@ class TestCvSize < OpenCVTestCase
     a = CvSize.new(10, 20).to_ary
     assert_equal(10, a[0])
     assert_equal(20, a[1])
+
+    # Alias
+    a = CvSize.new(10, 20).to_a
+    assert_equal(10, a[0])
+    assert_equal(20, a[1])
   end
 end
 

test/test_cvsize2d32f.rb

@@ -65,6 +65,11 @@ class TestCvSize2D32f < OpenCVTestCase
     a = CvSize2D32f.new(1.1, 2.2).to_ary
     assert_in_delta(1.1, a[0], 0.001)
     assert_in_delta(2.2, a[1], 0.001)
+
+    # Alias
+    a = CvSize2D32f.new(1.1, 2.2).to_a
+    assert_in_delta(1.1, a[0], 0.001)
+    assert_in_delta(2.2, a[1], 0.001)
   end
 end