fixed #50

src/tests/test_optimizers.cpp

@@ -72,7 +72,7 @@ public:
 
 protected:
     const Functor& _f;
-    const Eigen::VectorXd& _init;
+    Eigen::VectorXd _init;
 };
 
 template <typename Functor>
@@ -175,4 +175,4 @@ BOOST_AUTO_TEST_CASE(test_cmaes_bi_dim)
     BOOST_CHECK_EQUAL(best_point.size(), 2);
     BOOST_CHECK_CLOSE(best_point(0), 1, 0.0001);
     BOOST_CHECK_SMALL(best_point(1), 0.000001);
-}
\ No newline at end of file
+}