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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 typename NumTraits<Scalar>::Real RealScalar;
     20   typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
     21   typedef Matrix<Scalar, Dynamic, Dynamic> MatrixX;
     22   typedef Matrix<Scalar, Dynamic, 1> VectorX;
     23 
     24   Index rows = m.rows();
     25   Index cols = m.cols();
     26 
     27   MatrixType m1 = MatrixType::Random(rows, cols),
     28              m2 = MatrixType::Random(rows, cols);
     29 
     30   VectorType v1 = VectorType::Random(rows);
     31 
     32   MatrixX x1, x2;
     33   VectorX vx1;
     34 
     35   int  f1 = internal::random<int>(1,10),
     36        f2 = internal::random<int>(1,10);
     37 
     38   x1.resize(rows*f1,cols*f2);
     39   for(int j=0; j<f2; j++)
     40   for(int i=0; i<f1; i++)
     41     x1.block(i*rows,j*cols,rows,cols) = m1;
     42   VERIFY_IS_APPROX(x1, m1.replicate(f1,f2));
     43 
     44   x2.resize(2*rows,3*cols);
     45   x2 << m2, m2, m2,
     46         m2, m2, m2;
     47   VERIFY_IS_APPROX(x2, (m2.template replicate<2,3>()));
     48 
     49   x2.resize(rows,f1);
     50   for (int j=0; j<f1; ++j)
     51     x2.col(j) = v1;
     52   VERIFY_IS_APPROX(x2, v1.rowwise().replicate(f1));
     53 
     54   vx1.resize(rows*f2);
     55   for (int j=0; j<f2; ++j)
     56     vx1.segment(j*rows,rows) = v1;
     57   VERIFY_IS_APPROX(vx1, v1.colwise().replicate(f2));
     58 }
     59 
     60 void test_array_replicate()
     61 {
     62   for(int i = 0; i < g_repeat; i++) {
     63     CALL_SUBTEST_1( replicate(Matrix<float, 1, 1>()) );
     64     CALL_SUBTEST_2( replicate(Vector2f()) );
     65     CALL_SUBTEST_3( replicate(Vector3d()) );
     66     CALL_SUBTEST_4( replicate(Vector4f()) );
     67     CALL_SUBTEST_5( replicate(VectorXf(16)) );
     68     CALL_SUBTEST_6( replicate(VectorXcd(10)) );
     69   }
     70 }
     71