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      1 // This file is part of Eigen, a lightweight C++ template library
      2 // for linear algebra.
      3 //
      4 // Copyright (C) 2009 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 template<typename MatrixType> void replicate(const MatrixType& m)
     13 {
     14   /* this test covers the following files:
     15      Replicate.cpp
     16   */
     17   typedef typename MatrixType::Index Index;
     18   typedef typename MatrixType::Scalar Scalar;
     19   typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
     20   typedef Matrix<Scalar, Dynamic, Dynamic> MatrixX;
     21   typedef Matrix<Scalar, Dynamic, 1> VectorX;
     22 
     23   Index rows = m.rows();
     24   Index cols = m.cols();
     25 
     26   MatrixType m1 = MatrixType::Random(rows, cols),
     27              m2 = MatrixType::Random(rows, cols);
     28 
     29   VectorType v1 = VectorType::Random(rows);
     30 
     31   MatrixX x1, x2;
     32   VectorX vx1;
     33 
     34   int  f1 = internal::random<int>(1,10),
     35        f2 = internal::random<int>(1,10);
     36 
     37   x1.resize(rows*f1,cols*f2);
     38   for(int j=0; j<f2; j++)
     39   for(int i=0; i<f1; i++)
     40     x1.block(i*rows,j*cols,rows,cols) = m1;
     41   VERIFY_IS_APPROX(x1, m1.replicate(f1,f2));
     42 
     43   x2.resize(2*rows,3*cols);
     44   x2 << m2, m2, m2,
     45         m2, m2, m2;
     46   VERIFY_IS_APPROX(x2, (m2.template replicate<2,3>()));
     47 
     48   x2.resize(rows,f1);
     49   for (int j=0; j<f1; ++j)
     50     x2.col(j) = v1;
     51   VERIFY_IS_APPROX(x2, v1.rowwise().replicate(f1));
     52 
     53   vx1.resize(rows*f2);
     54   for (int j=0; j<f2; ++j)
     55     vx1.segment(j*rows,rows) = v1;
     56   VERIFY_IS_APPROX(vx1, v1.colwise().replicate(f2));
     57 }
     58 
     59 void test_array_replicate()
     60 {
     61   for(int i = 0; i < g_repeat; i++) {
     62     CALL_SUBTEST_1( replicate(Matrix<float, 1, 1>()) );
     63     CALL_SUBTEST_2( replicate(Vector2f()) );
     64     CALL_SUBTEST_3( replicate(Vector3d()) );
     65     CALL_SUBTEST_4( replicate(Vector4f()) );
     66     CALL_SUBTEST_5( replicate(VectorXf(16)) );
     67     CALL_SUBTEST_6( replicate(VectorXcd(10)) );
     68   }
     69 }
     70