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cs440-acg/ext/eigen/test/stdvector_overload.cpp
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cs440-acg/ext/eigen/test/stdvector_overload.cpp
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
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// Copyright (C) 2010 Hauke Heibel <hauke.heibel@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "main.h"
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#include <Eigen/StdVector>
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#include <Eigen/Geometry>
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Vector4f)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix2f)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix4f)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Matrix4d)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Affine3f)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Affine3d)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Quaternionf)
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EIGEN_DEFINE_STL_VECTOR_SPECIALIZATION(Quaterniond)
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template<typename MatrixType>
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void check_stdvector_matrix(const MatrixType& m)
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{
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typename MatrixType::Index rows = m.rows();
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typename MatrixType::Index cols = m.cols();
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MatrixType x = MatrixType::Random(rows,cols), y = MatrixType::Random(rows,cols);
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std::vector<MatrixType> v(10, MatrixType::Zero(rows,cols)), w(20, y);
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v[5] = x;
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w[6] = v[5];
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VERIFY_IS_APPROX(w[6], v[5]);
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v = w;
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for(int i = 0; i < 20; i++)
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{
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VERIFY_IS_APPROX(w[i], v[i]);
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}
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v.resize(21);
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v[20] = x;
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VERIFY_IS_APPROX(v[20], x);
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v.resize(22,y);
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VERIFY_IS_APPROX(v[21], y);
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v.push_back(x);
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VERIFY_IS_APPROX(v[22], x);
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VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(MatrixType));
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// do a lot of push_back such that the vector gets internally resized
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// (with memory reallocation)
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MatrixType* ref = &w[0];
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for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
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v.push_back(w[i%w.size()]);
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for(unsigned int i=23; i<v.size(); ++i)
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{
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VERIFY(v[i]==w[(i-23)%w.size()]);
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}
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}
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template<typename TransformType>
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void check_stdvector_transform(const TransformType&)
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{
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typedef typename TransformType::MatrixType MatrixType;
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TransformType x(MatrixType::Random()), y(MatrixType::Random());
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std::vector<TransformType> v(10), w(20, y);
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v[5] = x;
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w[6] = v[5];
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VERIFY_IS_APPROX(w[6], v[5]);
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v = w;
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for(int i = 0; i < 20; i++)
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{
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VERIFY_IS_APPROX(w[i], v[i]);
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}
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v.resize(21);
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v[20] = x;
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VERIFY_IS_APPROX(v[20], x);
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v.resize(22,y);
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VERIFY_IS_APPROX(v[21], y);
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v.push_back(x);
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VERIFY_IS_APPROX(v[22], x);
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VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(TransformType));
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// do a lot of push_back such that the vector gets internally resized
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// (with memory reallocation)
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TransformType* ref = &w[0];
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for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
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v.push_back(w[i%w.size()]);
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for(unsigned int i=23; i<v.size(); ++i)
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{
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VERIFY(v[i].matrix()==w[(i-23)%w.size()].matrix());
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}
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}
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template<typename QuaternionType>
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void check_stdvector_quaternion(const QuaternionType&)
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{
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typedef typename QuaternionType::Coefficients Coefficients;
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QuaternionType x(Coefficients::Random()), y(Coefficients::Random()), qi=QuaternionType::Identity();
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std::vector<QuaternionType> v(10,qi), w(20, y);
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v[5] = x;
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w[6] = v[5];
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VERIFY_IS_APPROX(w[6], v[5]);
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v = w;
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for(int i = 0; i < 20; i++)
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{
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VERIFY_IS_APPROX(w[i], v[i]);
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}
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v.resize(21);
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v[20] = x;
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VERIFY_IS_APPROX(v[20], x);
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v.resize(22,y);
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VERIFY_IS_APPROX(v[21], y);
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v.push_back(x);
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VERIFY_IS_APPROX(v[22], x);
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VERIFY((internal::UIntPtr)&(v[22]) == (internal::UIntPtr)&(v[21]) + sizeof(QuaternionType));
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// do a lot of push_back such that the vector gets internally resized
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// (with memory reallocation)
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QuaternionType* ref = &w[0];
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for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
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v.push_back(w[i%w.size()]);
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for(unsigned int i=23; i<v.size(); ++i)
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{
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VERIFY(v[i].coeffs()==w[(i-23)%w.size()].coeffs());
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}
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}
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void test_stdvector_overload()
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{
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// some non vectorizable fixed sizes
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CALL_SUBTEST_1(check_stdvector_matrix(Vector2f()));
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CALL_SUBTEST_1(check_stdvector_matrix(Matrix3f()));
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CALL_SUBTEST_2(check_stdvector_matrix(Matrix3d()));
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// some vectorizable fixed sizes
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CALL_SUBTEST_1(check_stdvector_matrix(Matrix2f()));
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CALL_SUBTEST_1(check_stdvector_matrix(Vector4f()));
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CALL_SUBTEST_1(check_stdvector_matrix(Matrix4f()));
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CALL_SUBTEST_2(check_stdvector_matrix(Matrix4d()));
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// some dynamic sizes
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CALL_SUBTEST_3(check_stdvector_matrix(MatrixXd(1,1)));
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CALL_SUBTEST_3(check_stdvector_matrix(VectorXd(20)));
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CALL_SUBTEST_3(check_stdvector_matrix(RowVectorXf(20)));
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CALL_SUBTEST_3(check_stdvector_matrix(MatrixXcf(10,10)));
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// some Transform
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CALL_SUBTEST_4(check_stdvector_transform(Affine2f())); // does not need the specialization (2+1)^2 = 9
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CALL_SUBTEST_4(check_stdvector_transform(Affine3f()));
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CALL_SUBTEST_4(check_stdvector_transform(Affine3d()));
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// some Quaternion
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CALL_SUBTEST_5(check_stdvector_quaternion(Quaternionf()));
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CALL_SUBTEST_5(check_stdvector_quaternion(Quaterniond()));
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}
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