Fixed all Doxygen C++11 incompatibilities.

src/Math/Matrix3.h

@@ -45,18 +45,11 @@ template<class T> class Matrix3: public Matrix<T, 3> {
             0.0f, 0.0f, identity ? 1.0f : 0.0f
         } {}
 
-        /**
-         * @brief Initializer-list constructor
-         * @param first First value
-         * @param next  Next values
-         *
-         * Note that the values are in column-major order.
-         */
-        /* doxygen: @copydoc Matrix::Matrix(T, U&&...) doesn't work */
+        /** @copydoc Matrix::Matrix(T, U&&...) */
         #ifndef DOXYGEN_GENERATING_OUTPUT
         template<class ...U> inline constexpr Matrix3(T first, U&&... next): Matrix<T, 3>(first, std::forward<U>(next)...) {}
         #else
-        template<class ...U> inline constexpr Matrix3(T first, U&&... next);
+        template<class ...U> inline constexpr Matrix3(T first, U&&... next) {}
         #endif
 
         /** @copydoc Matrix::Matrix(const Matrix<T, size>&) */

src/Math/Matrix4.h

@@ -114,18 +114,11 @@ template<class T> class Matrix4: public Matrix<T, 4> {
             0.0f, 0.0f, 0.0f, identity ? 1.0f : 0.0f
         } {}
 
-        /**
-         * @brief Initializer-list constructor
-         * @param first First value
-         * @param next  Next values
-         *
-         * Note that the values are in column-major order.
-         */
-        /* doxygen: @copydoc Matrix::Matrix(T, U&&...) doesn't work */
+        /** @copydoc Matrix::Matrix(T, U&&...) */
         #ifndef DOXYGEN_GENERATING_OUTPUT
         template<class ...U> inline constexpr Matrix4(T first, U&&... next): Matrix<T, 4>(first, std::forward<U>(next)...) {}
         #else
-        template<class ...U> inline constexpr Matrix4(T first, U&&... next);
+        template<class ...U> inline constexpr Matrix4(T first, U&&... next) {}
         #endif
 
         /** @copydoc Matrix::Matrix(const Matrix<T, size>&) */

src/MeshTools/Interleave.h

@@ -52,7 +52,11 @@ class Interleave {
         };
 
         /** @brief Constructor */
+        #ifndef DOXYGEN_GENERATING_OUTPUT
         inline Interleave(): result{0, 0, 0} {}
+        #else
+        inline Interleave() {}
+        #endif
 
         /**
          * @brief Functor