Added thirdparty: boost library

thirdparty/include/boost/qvm/mat_traits_defaults.hpp

@@ -0,0 +1,91 @@
+#ifndef BOOST_QVM_MAT_TRAITS_DEFAULTS_HPP_INCLUDED
+#define BOOST_QVM_MAT_TRAITS_DEFAULTS_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/config.hpp>
+#include <boost/qvm/assert.hpp>
+
+namespace boost { namespace qvm {
+
+template <class>
+struct mat_traits;
+
+namespace
+qvm_detail
+    {
+    template <int I,int N>
+    struct
+    matrix_w
+        {
+        template <class A>
+        static
+        BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
+        typename mat_traits<A>::scalar_type &
+        write_element_idx( int r, int c, A & a )
+            {
+            return (I/mat_traits<A>::cols)==r && (I%mat_traits<A>::cols)==c?
+                mat_traits<A>::template write_element<I/mat_traits<A>::cols,I%mat_traits<A>::cols>(a) :
+                matrix_w<I+1,N>::write_element_idx(r,c,a);
+            }
+        };
+
+    template <int N>
+    struct
+    matrix_w<N,N>
+        {
+        template <class A>
+        static
+        BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_TRIVIAL
+        typename mat_traits<A>::scalar_type &
+        write_element_idx( int, int, A & a )
+            {
+            BOOST_QVM_ASSERT(0);
+            return mat_traits<A>::template write_element<0,0>(a);
+            }
+        };
+    }
+
+template <class MatType,class ScalarType,int Rows,int Cols>
+struct
+mat_traits_defaults
+    {
+    typedef MatType mat_type;
+    typedef ScalarType scalar_type;
+    static int const rows=Rows;
+    static int const cols=Cols;
+
+    template <int Row,int Col>
+    static
+    BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
+    scalar_type
+    read_element( mat_type const & x )
+        {
+        return mat_traits<mat_type>::template write_element<Row,Col>(const_cast<mat_type &>(x));
+        }
+
+    static
+    BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
+    scalar_type
+    read_element_idx( int r, int c, mat_type const & x )
+        {
+        return mat_traits<mat_type>::write_element_idx(r,c,const_cast<mat_type &>(x));
+        }
+
+    protected:
+
+    static
+    BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_TRIVIAL
+    scalar_type &
+    write_element_idx( int r, int c, mat_type & m )
+        {
+        return qvm_detail::matrix_w<0,mat_traits<mat_type>::rows*mat_traits<mat_type>::cols>::write_element_idx(r,c,m);
+        }
+    };
+
+} }
+
+#endif