Added thirdparty: boost library

thirdparty/include/boost/qvm/detail/vec_assign.hpp

@@ -0,0 +1,82 @@
+#ifndef BOOST_QVM_DETAIL_VEC_ASSIGN_HPP_INCLUDED
+#define BOOST_QVM_DETAIL_VEC_ASSIGN_HPP_INCLUDED
+
+// Copyright 2008-2022 Emil Dotchevski and Reverge Studios, Inc.
+
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/qvm/gen/vec_assign2.hpp>
+#include <boost/qvm/gen/vec_assign3.hpp>
+#include <boost/qvm/gen/vec_assign4.hpp>
+
+namespace boost { namespace qvm {
+
+namespace
+qvm_detail
+    {
+    template <int D>
+    struct
+    assign_vv_defined
+        {
+        static bool const value=false;
+        };
+
+    template <int I,int N>
+    struct
+    copy_vector_elements
+        {
+        template <class A,class B>
+        static
+        BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
+        typename enable_if_c<
+            vec_write_element_ref<A>::value,
+            void>::type
+        f( A & a, B const & b )
+            {
+            vec_traits<A>::template write_element<I>(a) = vec_traits<B>::template read_element<I>(b);
+            copy_vector_elements<I+1,N>::f(a,b);
+            }
+
+        template <class A,class B>
+        static
+        BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
+        typename enable_if_c<
+            !vec_write_element_ref<A>::value,
+            void>::type
+        f( A & a, B const & b )
+            {
+            vec_traits<A>::template write_element<I>(a, vec_traits<B>::template read_element<I>(b));
+            copy_vector_elements<I+1,N>::f(a,b);
+            }
+        };
+
+    template <int N>
+    struct
+    copy_vector_elements<N,N>
+        {
+        template <class A,class B>
+        static
+        void
+        f( A &, B const & )
+            {
+            }
+        };
+    }
+
+template <class A,class B>
+inline
+typename enable_if_c<
+    is_vec<A>::value && is_vec<B>::value &&
+    vec_traits<A>::dim==vec_traits<B>::dim &&
+    !qvm_detail::assign_vv_defined<vec_traits<A>::dim>::value,
+    A &>::type
+assign( A & a, B const & b )
+    {
+    qvm_detail::copy_vector_elements<0,vec_traits<A>::dim>::f(a,b);
+    return a;
+    }
+
+} }
+
+#endif