Updated Doxyfile for Doxygen 1.8.1.

Doxygen produces some false-positive warnings for Matrix and Vector
classes, but the generated documentation is fine. Worked around the
warnings by using @copybrief and @copydetails instead of @copydoc.

Doxyfile

@@ -1,4 +1,4 @@
-# Doxyfile 1.8.0
+# Doxyfile 1.8.1
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
@@ -561,12 +561,6 @@ MAX_INITIALIZER_LINES  = 30
 
 SHOW_USED_FILES        = YES
 
-# If the sources in your project are distributed over multiple directories
-# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy
-# in the documentation. The default is NO.
-
-SHOW_DIRECTORIES       = NO
-
 # Set the SHOW_FILES tag to NO to disable the generation of the Files page.
 # This will remove the Files entry from the Quick Index and from the
 # Folder Tree View (if specified). The default is YES.
@@ -958,12 +952,6 @@ HTML_COLORSTYLE_GAMMA  = 80
 
 HTML_TIMESTAMP         = YES
 
-# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
-# files or namespaces will be aligned in HTML using tables. If set to
-# NO a bullet list will be used.
-
-HTML_ALIGN_MEMBERS     = YES
-
 # If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
 # documentation will contain sections that can be hidden and shown after the
 # page has loaded. For this to work a browser that supports
@@ -972,6 +960,17 @@ HTML_ALIGN_MEMBERS     = YES
 
 HTML_DYNAMIC_SECTIONS  = NO
 
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of
+# entries shown in the various tree structured indices initially; the user
+# can expand and collapse entries dynamically later on. Doxygen will expand
+# the tree to such a level that at most the specified number of entries are
+# visible (unless a fully collapsed tree already exceeds this amount).
+# So setting the number of entries 1 will produce a full collapsed tree by
+# default. 0 is a special value representing an infinite number of entries
+# and will result in a full expanded tree by default.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
 # If the GENERATE_DOCSET tag is set to YES, additional index files
 # will be generated that can be used as input for Apple's Xcode 3
 # integrated development environment, introduced with OSX 10.5 (Leopard).
@@ -1150,11 +1149,6 @@ GENERATE_TREEVIEW      = NO
 
 ENUM_VALUES_PER_LINE   = 4
 
-# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
-# and Class Hierarchy pages using a tree view instead of an ordered list.
-
-USE_INLINE_TREES       = NO
-
 # If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
 # used to set the initial width (in pixels) of the frame in which the tree
 # is shown.
@@ -1722,7 +1716,7 @@ CALLER_GRAPH           = NO
 
 GRAPHICAL_HIERARCHY    = YES
 
-# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES
+# If the DIRECTORY_GRAPH and HAVE_DOT tags are set to YES
 # then doxygen will show the dependencies a directory has on other directories
 # in a graphical way. The dependency relations are determined by the #include
 # relations between the files in the directories.

src/Math/Matrix.h

@@ -61,7 +61,7 @@ template<size_t size, class T> class Matrix {
             return *reinterpret_cast<Matrix<size, T>*>(data);
         }
 
-        /** @copydoc from(T*) */
+        /** @copybrief from(T*) @copydetails from(T*) */
         inline constexpr static const Matrix<size, T>& from(const T* data) {
             return *reinterpret_cast<const Matrix<size, T>*>(data);
         }
@@ -128,14 +128,14 @@ template<size_t size, class T> class Matrix {
          *      order.
          */
         inline T* data() { return _data; }
-        inline constexpr const T* data() const { return _data; } /**< @copydoc data() */
+        inline constexpr const T* data() const { return _data; } /**< @copybrief data() @copydetails data() */
 
         /** @brief %Matrix column */
         inline Vector<size, T>& operator[](size_t col) {
             return Vector<size, T>::from(_data+col*size);
         }
 
-        /** @copydoc operator[]() */
+        /** @copybrief operator[]() @copydetails operator[]() */
         inline constexpr const Vector<size, T>& operator[](size_t col) const {
             return Vector<size, T>::from(_data+col*size);
         }

src/Math/Vector.h

@@ -48,7 +48,7 @@ template<size_t size, class T> class Vector {
             return *reinterpret_cast<Vector<size, T>*>(data);
         }
 
-        /** @copydoc from(T*) */
+        /** @copybrief from(T*) @copydetails from(T*) */
         inline constexpr static const Vector<size, T>& from(const T* data) {
             return *reinterpret_cast<const Vector<size, T>*>(data);
         }
@@ -118,11 +118,11 @@ template<size_t size, class T> class Vector {
          * @return Array with the same size as the vector
          */
         inline T* data() { return _data; }
-        inline constexpr const T* data() const { return _data; } /**< @copydoc data() */
+        inline constexpr const T* data() const { return _data; } /**< @copybrief data() @copydetails data() */
 
         /** @brief Value at given position */
         inline T& operator[](size_t pos) { return _data[pos]; }
-        inline constexpr T operator[](size_t pos) const { return _data[pos]; } /**< @copydoc operator[]() */
+        inline constexpr T operator[](size_t pos) const { return _data[pos]; } /**< @copybrief operator[]() @copydetails operator[]() */
 
         /** @brief Equality operator */
         inline bool operator==(const Vector<size, T>& other) const {