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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 Benoit Jacob <jacob.benoit.1 (at) gmail.com>
      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 #include <Eigen/StdVector>
     12 #include <Eigen/Geometry>
     13 
     14 template<typename MatrixType>
     15 void check_stdvector_matrix(const MatrixType& m)
     16 {
     17   typename MatrixType::Index rows = m.rows();
     18   typename MatrixType::Index cols = m.cols();
     19   MatrixType x = MatrixType::Random(rows,cols), y = MatrixType::Random(rows,cols);
     20   std::vector<MatrixType,Eigen::aligned_allocator<MatrixType> > v(10, MatrixType(rows,cols)), w(20, y);
     21   v[5] = x;
     22   w[6] = v[5];
     23   VERIFY_IS_APPROX(w[6], v[5]);
     24   v = w;
     25   for(int i = 0; i < 20; i++)
     26   {
     27     VERIFY_IS_APPROX(w[i], v[i]);
     28   }
     29 
     30   v.resize(21);
     31   v[20] = x;
     32   VERIFY_IS_APPROX(v[20], x);
     33   v.resize(22,y);
     34   VERIFY_IS_APPROX(v[21], y);
     35   v.push_back(x);
     36   VERIFY_IS_APPROX(v[22], x);
     37   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(MatrixType));
     38 
     39   // do a lot of push_back such that the vector gets internally resized
     40   // (with memory reallocation)
     41   MatrixType* ref = &w[0];
     42   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
     43     v.push_back(w[i%w.size()]);
     44   for(unsigned int i=23; i<v.size(); ++i)
     45   {
     46     VERIFY(v[i]==w[(i-23)%w.size()]);
     47   }
     48 }
     49 
     50 template<typename TransformType>
     51 void check_stdvector_transform(const TransformType&)
     52 {
     53   typedef typename TransformType::MatrixType MatrixType;
     54   TransformType x(MatrixType::Random()), y(MatrixType::Random());
     55   std::vector<TransformType,Eigen::aligned_allocator<TransformType> > v(10), w(20, y);
     56   v[5] = x;
     57   w[6] = v[5];
     58   VERIFY_IS_APPROX(w[6], v[5]);
     59   v = w;
     60   for(int i = 0; i < 20; i++)
     61   {
     62     VERIFY_IS_APPROX(w[i], v[i]);
     63   }
     64 
     65   v.resize(21);
     66   v[20] = x;
     67   VERIFY_IS_APPROX(v[20], x);
     68   v.resize(22,y);
     69   VERIFY_IS_APPROX(v[21], y);
     70   v.push_back(x);
     71   VERIFY_IS_APPROX(v[22], x);
     72   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(TransformType));
     73 
     74   // do a lot of push_back such that the vector gets internally resized
     75   // (with memory reallocation)
     76   TransformType* ref = &w[0];
     77   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
     78     v.push_back(w[i%w.size()]);
     79   for(unsigned int i=23; i<v.size(); ++i)
     80   {
     81     VERIFY(v[i].matrix()==w[(i-23)%w.size()].matrix());
     82   }
     83 }
     84 
     85 template<typename QuaternionType>
     86 void check_stdvector_quaternion(const QuaternionType&)
     87 {
     88   typedef typename QuaternionType::Coefficients Coefficients;
     89   QuaternionType x(Coefficients::Random()), y(Coefficients::Random());
     90   std::vector<QuaternionType,Eigen::aligned_allocator<QuaternionType> > v(10), w(20, y);
     91   v[5] = x;
     92   w[6] = v[5];
     93   VERIFY_IS_APPROX(w[6], v[5]);
     94   v = w;
     95   for(int i = 0; i < 20; i++)
     96   {
     97     VERIFY_IS_APPROX(w[i], v[i]);
     98   }
     99 
    100   v.resize(21);
    101   v[20] = x;
    102   VERIFY_IS_APPROX(v[20], x);
    103   v.resize(22,y);
    104   VERIFY_IS_APPROX(v[21], y);
    105   v.push_back(x);
    106   VERIFY_IS_APPROX(v[22], x);
    107   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(QuaternionType));
    108 
    109   // do a lot of push_back such that the vector gets internally resized
    110   // (with memory reallocation)
    111   QuaternionType* ref = &w[0];
    112   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
    113     v.push_back(w[i%w.size()]);
    114   for(unsigned int i=23; i<v.size(); ++i)
    115   {
    116     VERIFY(v[i].coeffs()==w[(i-23)%w.size()].coeffs());
    117   }
    118 }
    119 
    120 void test_stdvector()
    121 {
    122   // some non vectorizable fixed sizes
    123   CALL_SUBTEST_1(check_stdvector_matrix(Vector2f()));
    124   CALL_SUBTEST_1(check_stdvector_matrix(Matrix3f()));
    125   CALL_SUBTEST_2(check_stdvector_matrix(Matrix3d()));
    126 
    127   // some vectorizable fixed sizes
    128   CALL_SUBTEST_1(check_stdvector_matrix(Matrix2f()));
    129   CALL_SUBTEST_1(check_stdvector_matrix(Vector4f()));
    130   CALL_SUBTEST_1(check_stdvector_matrix(Matrix4f()));
    131   CALL_SUBTEST_2(check_stdvector_matrix(Matrix4d()));
    132 
    133   // some dynamic sizes
    134   CALL_SUBTEST_3(check_stdvector_matrix(MatrixXd(1,1)));
    135   CALL_SUBTEST_3(check_stdvector_matrix(VectorXd(20)));
    136   CALL_SUBTEST_3(check_stdvector_matrix(RowVectorXf(20)));
    137   CALL_SUBTEST_3(check_stdvector_matrix(MatrixXcf(10,10)));
    138 
    139   // some Transform
    140   CALL_SUBTEST_4(check_stdvector_transform(Projective2f()));
    141   CALL_SUBTEST_4(check_stdvector_transform(Projective3f()));
    142   CALL_SUBTEST_4(check_stdvector_transform(Projective3d()));
    143   //CALL_SUBTEST(heck_stdvector_transform(Projective4d()));
    144 
    145   // some Quaternion
    146   CALL_SUBTEST_5(check_stdvector_quaternion(Quaternionf()));
    147   CALL_SUBTEST_5(check_stdvector_quaternion(Quaterniond()));
    148 }
    149