define contiguous buffer (#207)

Author: jwaldrop107

include/tensorwrapper/buffer/contiguous.hpp

@@ -17,6 +17,7 @@
 #pragma once
 #include <tensorwrapper/buffer/replicated.hpp>
 #include <tensorwrapper/detail_/integer_utilities.hpp>
+#include <tensorwrapper/types/floating_point.hpp>
 
 namespace tensorwrapper::buffer {
 
@@ -137,4 +138,10 @@ class Contiguous : public Replicated {
     virtual const_reference get_elem_(index_vector index) const = 0;
 };
 
+#define DECLARE_CONTIG_BUFFER(TYPE) extern template class Contiguous<TYPE>
+
+TW_APPLY_FLOATING_POINT_TYPES(DECLARE_CONTIG_BUFFER);
+
+#undef DECLARE_CONTIG_BUFFER
+
 } // namespace tensorwrapper::buffer

src/tensorwrapper/buffer/contiguoues.cpp

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2025 NWChemEx-Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <tensorwrapper/buffer/contiguous.hpp>
+
+namespace tensorwrapper::buffer {
+
+#define DEFINE_CONTIG_BUFFER(TYPE) template class Contiguous<TYPE>
+
+TW_APPLY_FLOATING_POINT_TYPES(DEFINE_CONTIG_BUFFER);
+
+#undef DEFINE_CONTIG_BUFFER
+
+} // namespace tensorwrapper::buffer