bug #969: workaround abiguous calls to Ref using enable_if.

1 files changed, 24 insertions, 0 deletions

diff --git a/test/ref.cpp b/test/ref.cpp
index b9470213c..fbe2c450f 100644
--- a/test/ref.cpp
+++ b/test/ref.cpp
@@ -228,6 +228,28 @@ void call_ref()
   VERIFY_EVALUATION_COUNT( call_ref_7(c,c), 0);
 }
 
+typedef Matrix<double,Dynamic,Dynamic,RowMajor> RowMatrixXd;
+int test_ref_overload_fun1(Ref<MatrixXd> )       { return 1; }
+int test_ref_overload_fun1(Ref<RowMatrixXd> )    { return 2; }
+int test_ref_overload_fun1(Ref<MatrixXf> )       { return 3; }
+
+int test_ref_overload_fun2(Ref<const MatrixXd> ) { return 4; }
+int test_ref_overload_fun2(Ref<const MatrixXf> ) { return 5; }
+
+// See also bug 969
+void test_ref_overloads()
+{
+  MatrixXd Ad, Bd;
+  RowMatrixXd rAd, rBd;
+  VERIFY( test_ref_overload_fun1(Ad)==1 );
+  VERIFY( test_ref_overload_fun1(rAd)==2 );
+  
+  MatrixXf Af, Bf;
+  VERIFY( test_ref_overload_fun2(Ad)==4 );
+  VERIFY( test_ref_overload_fun2(Ad+Bd)==4 );
+  VERIFY( test_ref_overload_fun2(Af+Bf)==5 );
+}
+
 void test_ref()
 {
   for(int i = 0; i < g_repeat; i++) {
@@ -248,4 +270,6 @@ void test_ref()
     CALL_SUBTEST_5( ref_matrix(MatrixXi(internal::random<int>(1,10),internal::random<int>(1,10))) );
     CALL_SUBTEST_6( call_ref() );
   }
+  
+  CALL_SUBTEST_7( test_ref_overloads() );
 }