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      1 // This file is part of Eigen, a lightweight C++ template library
      2 // for linear algebra.
      3 //
      4 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud (at) inria.fr>
      5 //
      6 // This Source Code Form is subject to the terms of the Mozilla
      7 // Public License v. 2.0. If a copy of the MPL was not distributed
      8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
      9 
     10 #include "main.h"
     11 
     12 
     13 template<int M1, int M2, int N1, int N2>
     14 void test_blocks()
     15 {
     16   Matrix<int, M1+M2, N1+N2> m_fixed;
     17   MatrixXi m_dynamic(M1+M2, N1+N2);
     18 
     19   Matrix<int, M1, N1> mat11; mat11.setRandom();
     20   Matrix<int, M1, N2> mat12; mat12.setRandom();
     21   Matrix<int, M2, N1> mat21; mat21.setRandom();
     22   Matrix<int, M2, N2> mat22; mat22.setRandom();
     23 
     24   MatrixXi matx11 = mat11, matx12 = mat12, matx21 = mat21, matx22 = mat22;
     25 
     26   {
     27     VERIFY_IS_EQUAL((m_fixed << mat11, mat12, mat21, matx22).finished(), (m_dynamic << mat11, matx12, mat21, matx22).finished());
     28     VERIFY_IS_EQUAL((m_fixed.template topLeftCorner<M1,N1>()), mat11);
     29     VERIFY_IS_EQUAL((m_fixed.template topRightCorner<M1,N2>()), mat12);
     30     VERIFY_IS_EQUAL((m_fixed.template bottomLeftCorner<M2,N1>()), mat21);
     31     VERIFY_IS_EQUAL((m_fixed.template bottomRightCorner<M2,N2>()), mat22);
     32     VERIFY_IS_EQUAL((m_fixed << mat12, mat11, matx21, mat22).finished(), (m_dynamic << mat12, matx11, matx21, mat22).finished());
     33   }
     34 
     35   if(N1 > 0)
     36   {
     37     VERIFY_RAISES_ASSERT((m_fixed << mat11, mat12, mat11, mat21, mat22));
     38     VERIFY_RAISES_ASSERT((m_fixed << mat11, mat12, mat21, mat21, mat22));
     39   }
     40   else
     41   {
     42     // allow insertion of zero-column blocks:
     43     VERIFY_IS_EQUAL((m_fixed << mat11, mat12, mat11, mat11, mat21, mat21, mat22).finished(), (m_dynamic << mat12, mat22).finished());
     44   }
     45   if(M1 != M2)
     46   {
     47     VERIFY_RAISES_ASSERT((m_fixed << mat11, mat21, mat12, mat22));
     48   }
     49 }
     50 
     51 
     52 template<int N>
     53 struct test_block_recursion
     54 {
     55   static void run()
     56   {
     57     test_blocks<(N>>6)&3, (N>>4)&3, (N>>2)&3, N & 3>();
     58     test_block_recursion<N-1>::run();
     59   }
     60 };
     61 
     62 template<>
     63 struct test_block_recursion<-1>
     64 {
     65   static void run() { }
     66 };
     67 
     68 void test_commainitializer()
     69 {
     70   Matrix3d m3;
     71   Matrix4d m4;
     72 
     73   VERIFY_RAISES_ASSERT( (m3 << 1, 2, 3, 4, 5, 6, 7, 8) );
     74 
     75   #ifndef _MSC_VER
     76   VERIFY_RAISES_ASSERT( (m3 << 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) );
     77   #endif
     78 
     79   double data[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
     80   Matrix3d ref = Map<Matrix<double,3,3,RowMajor> >(data);
     81 
     82   m3 = Matrix3d::Random();
     83   m3 << 1, 2, 3, 4, 5, 6, 7, 8, 9;
     84   VERIFY_IS_APPROX(m3, ref );
     85 
     86   Vector3d vec[3];
     87   vec[0] << 1, 4, 7;
     88   vec[1] << 2, 5, 8;
     89   vec[2] << 3, 6, 9;
     90   m3 = Matrix3d::Random();
     91   m3 << vec[0], vec[1], vec[2];
     92   VERIFY_IS_APPROX(m3, ref);
     93 
     94   vec[0] << 1, 2, 3;
     95   vec[1] << 4, 5, 6;
     96   vec[2] << 7, 8, 9;
     97   m3 = Matrix3d::Random();
     98   m3 << vec[0].transpose(),
     99         4, 5, 6,
    100         vec[2].transpose();
    101   VERIFY_IS_APPROX(m3, ref);
    102 
    103 
    104   // recursively test all block-sizes from 0 to 3:
    105   test_block_recursion<(1<<8) - 1>();
    106 }
    107