Make travis happy

4 files changed, 301 insertions, 298 deletions

diff --git a/src/ints/cmp.hpp b/src/ints/cmp.hpp
index e0e819b..de6a5f2 100644
--- a/src/ints/cmp.hpp
+++ b/src/ints/cmp.hpp
@@ -25,6 +25,8 @@
 
 namespace ints
 {
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wtype-limits"
     template<class T, class U>
     T saturate(const U& v)
     {
@@ -58,6 +60,7 @@ namespace ints
             return v;
         }
     }
+# pragma GCC diagnostic pop
 } // namespace ints
 
 using ints::saturate;
diff --git a/src/ints/udl.hpp b/src/ints/udl.hpp
index ecb5478..caed16b 100644
--- a/src/ints/udl.hpp
+++ b/src/ints/udl.hpp
@@ -122,7 +122,7 @@ namespace ints
 
             template<class T>
             constexpr
-            operator T()
+            operator T() const
             {
                 typedef typename std::make_unsigned<T>::type U;
                 // boo, body of constexpr function can't use variables
diff --git a/src/ints/udl_test.cpp b/src/ints/udl_test.cpp
index 3bcbaad..acb4f76 100644
--- a/src/ints/udl_test.cpp
+++ b/src/ints/udl_test.cpp
@@ -30,439 +30,439 @@ TEST(ints, smc)
 {
     {
         ints::SignedMagnitudeConstant<false, 0> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7e> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7e> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7f> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7f> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x80> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x80> i;
-        static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        (void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xfe> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xfe> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xff> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        (void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xff> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false,0x100> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true, 0x100> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7ffe> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7ffe> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7fff> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7fff> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x8000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x8000> i;
-        //static_cast<int8_t>(i);
-        static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        (void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xfffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xfffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        (void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false,0x10000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true, 0x10000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7ffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7ffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7fffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7fffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x80000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x80000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        (void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xfffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xfffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        (void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false,0x100000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true, 0x100000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7ffffffffffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7ffffffffffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x7fffffffffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x7fffffffffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0x8000000000000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        //static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        //(void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0x8000000000000000> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        (void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xfffffffffffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        //static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        //(void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xfffffffffffffffe> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        //static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        //(void)static_cast<int64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<false, 0xffffffffffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        //static_cast<int64_t>(i);
-        //static_cast<uint8_t>(i);
-        //static_cast<uint16_t>(i);
-        //static_cast<uint32_t>(i);
-        static_cast<uint64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        //(void)static_cast<int64_t>(i);
+        //(void)static_cast<uint8_t>(i);
+        //(void)static_cast<uint16_t>(i);
+        //(void)static_cast<uint32_t>(i);
+        (void)static_cast<uint64_t>(i);
     }
     {
         ints::SignedMagnitudeConstant<true,  0xffffffffffffffff> i;
-        //static_cast<int8_t>(i);
-        //static_cast<int16_t>(i);
-        //static_cast<int32_t>(i);
-        //static_cast<int64_t>(i);
+        //(void)static_cast<int8_t>(i);
+        //(void)static_cast<int16_t>(i);
+        //(void)static_cast<int32_t>(i);
+        //(void)static_cast<int64_t>(i);
     }
     {
         //ints::SignedMagnitudeConstant<false,0x10000000000000000> i;
diff --git a/src/ints/wrap.hpp b/src/ints/wrap.hpp
index b25a1ad..71f2673 100644
--- a/src/ints/wrap.hpp
+++ b/src/ints/wrap.hpp
@@ -45,17 +45,17 @@ namespace ints
             bool operator !() const { return !_value; }
         };
 
-        template<class W>
+        template<class W, typename=typename W::wrapped_type>
         bool operator == (W l, W r)
         {
             return l._value == r._value;
         }
-        template<class W>
+        template<class W, typename=typename W::wrapped_type>
         bool operator != (W l, W r)
         {
             return l._value != r._value;
         }
-        template<class W>
+        template<class W, typename=typename W::wrapped_type>
         bool operator < (W l, W r)
         {
             return l._value < r._value;
@@ -74,8 +74,8 @@ namespace ints
             struct Sub : T
             {
                 constexpr
-                Sub(typename T::wrapped_type v)
-                : T(v)
+                Sub(typename T::wrapped_type v2)
+                : T(v2)
                 {}
             };
             return Sub(v);