reorganisation of headers, commit47b935fc42cbf2ca992d8a270bc1b0fc97d1f6bc

/2....
2026-04-10 11:34:33 +08:00 · 2007-10-07 15:58:30 +00:00
parent f939abd5f3
commit be429ebf9c
20 changed files with 0 additions and 100 deletions
--- a/src/Core/Minor.h
+++ b/src/Core/Minor.h
@@ -0,0 +1,83 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
+//
+// Eigen is free software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the Free Software
+// Foundation; either version 2 or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+// details.
+//
+// You should have received a copy of the GNU General Public License along
+// with Eigen; if not, write to the Free Software Foundation, Inc., 51
+// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. This exception does not invalidate any other reasons why a work
+// based on this file might be covered by the GNU General Public License.
+
+#ifndef EI_MINOR_H
+#define EI_MINOR_H
+
+template<typename MatrixType> class EiMinor
+  : public EiObject<typename MatrixType::Scalar, EiMinor<MatrixType> >
+{
+  public:
+    typedef typename MatrixType::Scalar Scalar;
+    typedef typename MatrixType::Ref MatRef;
+    friend class EiObject<Scalar, EiMinor<MatrixType> >;
+    
+    static const int
+      RowsAtCompileTime = (MatrixType::RowsAtCompileTime != EiDynamic) ?
+                          MatrixType::RowsAtCompileTime - 1 : EiDynamic,
+      ColsAtCompileTime = (MatrixType::ColsAtCompileTime != EiDynamic) ?
+                          MatrixType::ColsAtCompileTime - 1 : EiDynamic;
+
+    EiMinor(const MatRef& matrix,
+                int row, int col = 0)
+      : m_matrix(matrix), m_row(row), m_col(col)
+    {
+      EI_CHECK_RANGES(matrix, row, col);
+    }
+    
+    EiMinor(const EiMinor& other)
+      : m_matrix(other.m_matrix), m_row(other.m_row), m_col(other.m_col) {}
+    
+    EI_INHERIT_ASSIGNMENT_OPERATORS(EiMinor)
+    
+  private:
+    EiMinor& _ref() { return *this; }
+    const EiMinor& _constRef() const { return *this; }
+    int _rows() const { return m_matrix.rows() - 1; }
+    int _cols() const { return m_matrix.cols() - 1; }
+    
+    Scalar& _write(int row, int col=0)
+    {
+      return m_matrix.write(row + (row >= m_row), col + (col >= m_col));
+    }
+    
+    Scalar _read(int row, int col=0) const
+    {
+      return m_matrix.read(row + (row >= m_row), col + (col >= m_col));
+    }
+    
+  protected:
+    MatRef m_matrix;
+    const int m_row, m_col;
+};
+
+template<typename Scalar, typename Derived>
+EiMinor<Derived>
+EiObject<Scalar, Derived>::minor(int row, int col)
+{
+  return EiMinor<Derived>(static_cast<Derived*>(this)->ref(), row, col);
+}
+
+#endif // EI_MINOR_H