Merge pull request #192 from cppalliance/sha3basev2

Add SHA3/SHAKE base class v2

Author: mborland

.github/workflows/ci.yml

@@ -416,7 +416,7 @@ jobs:
       fail-fast: false
       matrix:
         compiler: [ intel ]
-        standard: [ c++20 ]
+        standard: [ 20, 23 ]
     steps:
       - uses: actions/checkout@v4
         with:
@@ -464,7 +464,12 @@ jobs:
         run: |
           cd ../boost-root
           mkdir __build__ && cd __build__
-          cmake -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DBOOST_INCLUDE_LIBRARIES=$LIBRARY -DBUILD_TESTING=ON ..
+          cmake -DCMAKE_C_COMPILER=icx \
+              -DCMAKE_CXX_COMPILER=icpx \
+              -DCMAKE_CXX_STANDARD=${{ matrix.standard }} \
+              -DCMAKE_CXX_STANDARD_REQUIRED=ON \
+              -DBOOST_INCLUDE_LIBRARIES=$LIBRARY \
+              -DBUILD_TESTING=ON ..
 
       - name: Build tests
         run: |

include/boost/crypt2/detail/compat.hpp

@@ -296,6 +296,20 @@ using unexpected =
         boost::crypt::detail::expected_impl::unexpected<E>;
         #endif
 
+// Endian
+enum class endian : int
+{
+    #ifdef BOOST_CRYPT_HAS_CUDA
+    little = static_cast<int>(cuda::std::endian::little),
+    big = static_cast<int>(cuda::std::endian::big),
+    native = static_cast<int>(cuda::std::endian::native),
+    #else
+    little = static_cast<int>(std::endian::little),
+    big = static_cast<int>(std::endian::big),
+    native = static_cast<int>(std::endian::native),
+    #endif
+};
+
 } // namespace boost::crypt::compat
 
 #endif // BOOST_CRYPT2_DETAIL_COMPAT_HPP