re-implement stableNorm using a homemade blocky and
vectorization friendly algorithm (slow if no vectorization)
diff --git a/test/adjoint.cpp b/test/adjoint.cpp
index 1f4aa74..47e1bd7 100644
--- a/test/adjoint.cpp
+++ b/test/adjoint.cpp
@@ -76,8 +76,8 @@
   {
     VERIFY_IS_MUCH_SMALLER_THAN(vzero.norm(),         static_cast<RealScalar>(1));
     VERIFY_IS_APPROX(v1.norm(),                       v1.stableNorm());
-    // NOTE disabled because it currently compiles for float and double only
-    // VERIFY_IS_APPROX(v1.blueNorm(),                       v1.stableNorm());
+    VERIFY_IS_APPROX(v1.blueNorm(),                   v1.stableNorm());
+    VERIFY_IS_APPROX(v1.hypotNorm(),                  v1.stableNorm());
   }
 
   // check compatibility of dot and adjoint