| 97 | } |
| 98 | |
| 99 | template<typename VectorType> void vectorVisitor(const VectorType& w) |
| 100 | { |
| 101 | typedef typename VectorType::Scalar Scalar; |
| 102 | |
| 103 | Index size = w.size(); |
| 104 | |
| 105 | // construct a random vector where all coefficients are different |
| 106 | VectorType v; |
| 107 | v = VectorType::Random(size); |
| 108 | for(Index i = 0; i < size; i++) |
| 109 | for(Index i2 = 0; i2 < i; i2++) |
| 110 | while(v(i) == v(i2)) // yes, == |
| 111 | v(i) = internal::random<Scalar>(); |
| 112 | |
| 113 | Scalar minc = v(0), maxc = v(0); |
| 114 | Index minidx=0, maxidx=0; |
| 115 | for(Index i = 0; i < size; i++) |
| 116 | { |
| 117 | if(v(i) < minc) |
| 118 | { |
| 119 | minc = v(i); |
| 120 | minidx = i; |
| 121 | } |
| 122 | if(v(i) > maxc) |
| 123 | { |
| 124 | maxc = v(i); |
| 125 | maxidx = i; |
| 126 | } |
| 127 | } |
| 128 | Index eigen_minidx, eigen_maxidx; |
| 129 | Scalar eigen_minc, eigen_maxc; |
| 130 | eigen_minc = v.minCoeff(&eigen_minidx); |
| 131 | eigen_maxc = v.maxCoeff(&eigen_maxidx); |
| 132 | VERIFY(minidx == eigen_minidx); |
| 133 | VERIFY(maxidx == eigen_maxidx); |
| 134 | VERIFY_IS_APPROX(minc, eigen_minc); |
| 135 | VERIFY_IS_APPROX(maxc, eigen_maxc); |
| 136 | VERIFY_IS_APPROX(minc, v.minCoeff()); |
| 137 | VERIFY_IS_APPROX(maxc, v.maxCoeff()); |
| 138 | |
| 139 | Index idx0 = internal::random<Index>(0,size-1); |
| 140 | Index idx1 = eigen_minidx; |
| 141 | Index idx2 = eigen_maxidx; |
| 142 | VectorType v1(v), v2(v); |
| 143 | v1(idx0) = v1(idx1); |
| 144 | v2(idx0) = v2(idx2); |
| 145 | v1.minCoeff(&eigen_minidx); |
| 146 | v2.maxCoeff(&eigen_maxidx); |
| 147 | VERIFY(eigen_minidx == (std::min)(idx0,idx1)); |
| 148 | VERIFY(eigen_maxidx == (std::min)(idx0,idx2)); |
| 149 | |
| 150 | if (!NumTraits<Scalar>::IsInteger && size > 2) { |
| 151 | // Test NaN propagation by replacing an element with NaN. |
| 152 | for (Index i = 0; i < size; ++i) { |
| 153 | if (i != minidx && i != maxidx) { |
| 154 | v(i) = NumTraits<Scalar>::quiet_NaN(); |
| 155 | break; |
| 156 | } |
no test coverage detected