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-rw-r--r--unsupported/test/autodiff_scalar.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/unsupported/test/autodiff_scalar.cpp b/unsupported/test/autodiff_scalar.cpp
index 4df2f5c57..9cf11280c 100644
--- a/unsupported/test/autodiff_scalar.cpp
+++ b/unsupported/test/autodiff_scalar.cpp
@@ -72,6 +72,20 @@ template<typename Scalar> void check_hyperbolic_functions()
VERIFY_IS_APPROX(res3.derivatives().x(), Scalar(0.339540557256150));
}
+template <typename Scalar>
+void check_limits_specialization()
+{
+ typedef Eigen::Matrix<Scalar, 1, 1> Deriv;
+ typedef Eigen::AutoDiffScalar<Deriv> AD;
+
+ typedef std::numeric_limits<AD> A;
+ typedef std::numeric_limits<Scalar> B;
+
+#if EIGEN_HAS_CXX11
+ VERIFY(bool(std::is_base_of<B, A>::value));
+#endif
+}
+
void test_autodiff_scalar()
{
for(int i = 0; i < g_repeat; i++) {
@@ -79,5 +93,6 @@ void test_autodiff_scalar()
CALL_SUBTEST_2( check_atan2<double>() );
CALL_SUBTEST_3( check_hyperbolic_functions<float>() );
CALL_SUBTEST_4( check_hyperbolic_functions<double>() );
+ CALL_SUBTEST_5( check_limits_specialization<double>());
}
}