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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 // Copyright (C) 2010 Hauke Heibel <hauke.heibel (at) gmail.com>
      6 //
      7 // This Source Code Form is subject to the terms of the Mozilla
      8 // Public License v. 2.0. If a copy of the MPL was not distributed
      9 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
     10 
     11 #include "main.h"
     12 
     13 #include <Eigen/StdVector>
     14 #include <Eigen/Geometry>
     15 
     16 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Vector4f)
     17 
     18 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix2f)
     19 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix4f)
     20 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix4d)
     21 
     22 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Affine3f)
     23 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Affine3d)
     24 
     25 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Quaternionf)
     26 EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Quaterniond)
     27 
     28 template<typename MatrixType>
     29 void check_stdvector_matrix(const MatrixType& m)
     30 {
     31   typename MatrixType::Index rows = m.rows();
     32   typename MatrixType::Index cols = m.cols();
     33   MatrixType x = MatrixType::Random(rows,cols), y = MatrixType::Random(rows,cols);
     34   std::vector<MatrixType> v(10, MatrixType(rows,cols)), w(20, y);
     35   v[5] = x;
     36   w[6] = v[5];
     37   VERIFY_IS_APPROX(w[6], v[5]);
     38   v = w;
     39   for(int i = 0; i < 20; i++)
     40   {
     41     VERIFY_IS_APPROX(w[i], v[i]);
     42   }
     43 
     44   v.resize(21);
     45   v[20] = x;
     46   VERIFY_IS_APPROX(v[20], x);
     47   v.resize(22,y);
     48   VERIFY_IS_APPROX(v[21], y);
     49   v.push_back(x);
     50   VERIFY_IS_APPROX(v[22], x);
     51   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(MatrixType));
     52 
     53   // do a lot of push_back such that the vector gets internally resized
     54   // (with memory reallocation)
     55   MatrixType* ref = &w[0];
     56   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
     57     v.push_back(w[i%w.size()]);
     58   for(unsigned int i=23; i<v.size(); ++i)
     59   {
     60     VERIFY(v[i]==w[(i-23)%w.size()]);
     61   }
     62 }
     63 
     64 template<typename TransformType>
     65 void check_stdvector_transform(const TransformType&)
     66 {
     67   typedef typename TransformType::MatrixType MatrixType;
     68   TransformType x(MatrixType::Random()), y(MatrixType::Random());
     69   std::vector<TransformType> v(10), w(20, y);
     70   v[5] = x;
     71   w[6] = v[5];
     72   VERIFY_IS_APPROX(w[6], v[5]);
     73   v = w;
     74   for(int i = 0; i < 20; i++)
     75   {
     76     VERIFY_IS_APPROX(w[i], v[i]);
     77   }
     78 
     79   v.resize(21);
     80   v[20] = x;
     81   VERIFY_IS_APPROX(v[20], x);
     82   v.resize(22,y);
     83   VERIFY_IS_APPROX(v[21], y);
     84   v.push_back(x);
     85   VERIFY_IS_APPROX(v[22], x);
     86   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(TransformType));
     87 
     88   // do a lot of push_back such that the vector gets internally resized
     89   // (with memory reallocation)
     90   TransformType* ref = &w[0];
     91   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
     92     v.push_back(w[i%w.size()]);
     93   for(unsigned int i=23; i<v.size(); ++i)
     94   {
     95     VERIFY(v[i].matrix()==w[(i-23)%w.size()].matrix());
     96   }
     97 }
     98 
     99 template<typename QuaternionType>
    100 void check_stdvector_quaternion(const QuaternionType&)
    101 {
    102   typedef typename QuaternionType::Coefficients Coefficients;
    103   QuaternionType x(Coefficients::Random()), y(Coefficients::Random());
    104   std::vector<QuaternionType> v(10), w(20, y);
    105   v[5] = x;
    106   w[6] = v[5];
    107   VERIFY_IS_APPROX(w[6], v[5]);
    108   v = w;
    109   for(int i = 0; i < 20; i++)
    110   {
    111     VERIFY_IS_APPROX(w[i], v[i]);
    112   }
    113 
    114   v.resize(21);
    115   v[20] = x;
    116   VERIFY_IS_APPROX(v[20], x);
    117   v.resize(22,y);
    118   VERIFY_IS_APPROX(v[21], y);
    119   v.push_back(x);
    120   VERIFY_IS_APPROX(v[22], x);
    121   VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(QuaternionType));
    122 
    123   // do a lot of push_back such that the vector gets internally resized
    124   // (with memory reallocation)
    125   QuaternionType* ref = &w[0];
    126   for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
    127     v.push_back(w[i%w.size()]);
    128   for(unsigned int i=23; i<v.size(); ++i)
    129   {
    130     VERIFY(v[i].coeffs()==w[(i-23)%w.size()].coeffs());
    131   }
    132 }
    133 
    134 void test_stdvector_overload()
    135 {
    136   // some non vectorizable fixed sizes
    137   CALL_SUBTEST_1(check_stdvector_matrix(Vector2f()));
    138   CALL_SUBTEST_1(check_stdvector_matrix(Matrix3f()));
    139   CALL_SUBTEST_2(check_stdvector_matrix(Matrix3d()));
    140 
    141   // some vectorizable fixed sizes
    142   CALL_SUBTEST_1(check_stdvector_matrix(Matrix2f()));
    143   CALL_SUBTEST_1(check_stdvector_matrix(Vector4f()));
    144   CALL_SUBTEST_1(check_stdvector_matrix(Matrix4f()));
    145   CALL_SUBTEST_2(check_stdvector_matrix(Matrix4d()));
    146 
    147   // some dynamic sizes
    148   CALL_SUBTEST_3(check_stdvector_matrix(MatrixXd(1,1)));
    149   CALL_SUBTEST_3(check_stdvector_matrix(VectorXd(20)));
    150   CALL_SUBTEST_3(check_stdvector_matrix(RowVectorXf(20)));
    151   CALL_SUBTEST_3(check_stdvector_matrix(MatrixXcf(10,10)));
    152 
    153   // some Transform
    154   CALL_SUBTEST_4(check_stdvector_transform(Affine2f())); // does not need the specialization (2+1)^2 = 9
    155   CALL_SUBTEST_4(check_stdvector_transform(Affine3f()));
    156   CALL_SUBTEST_4(check_stdvector_transform(Affine3d()));
    157 
    158   // some Quaternion
    159   CALL_SUBTEST_5(check_stdvector_quaternion(Quaternionf()));
    160   CALL_SUBTEST_5(check_stdvector_quaternion(Quaterniond()));
    161 }
    162