| 127 | } |
| 128 | |
| 129 | template<typename ArrayType> void comparisons(const ArrayType& m) |
| 130 | { |
| 131 | using std::abs; |
| 132 | typedef typename ArrayType::Scalar Scalar; |
| 133 | typedef typename NumTraits<Scalar>::Real RealScalar; |
| 134 | |
| 135 | Index rows = m.rows(); |
| 136 | Index cols = m.cols(); |
| 137 | |
| 138 | Index r = internal::random<Index>(0, rows-1), |
| 139 | c = internal::random<Index>(0, cols-1); |
| 140 | |
| 141 | ArrayType m1 = ArrayType::Random(rows, cols), |
| 142 | m2 = ArrayType::Random(rows, cols), |
| 143 | m3(rows, cols), |
| 144 | m4 = m1; |
| 145 | |
| 146 | m4 = (m4.abs()==Scalar(0)).select(1,m4); |
| 147 | |
| 148 | VERIFY(((m1 + Scalar(1)) > m1).all()); |
| 149 | VERIFY(((m1 - Scalar(1)) < m1).all()); |
| 150 | if (rows*cols>1) |
| 151 | { |
| 152 | m3 = m1; |
| 153 | m3(r,c) += 1; |
| 154 | VERIFY(! (m1 < m3).all() ); |
| 155 | VERIFY(! (m1 > m3).all() ); |
| 156 | } |
| 157 | VERIFY(!(m1 > m2 && m1 < m2).any()); |
| 158 | VERIFY((m1 <= m2 || m1 >= m2).all()); |
| 159 | |
| 160 | // comparisons array to scalar |
| 161 | VERIFY( (m1 != (m1(r,c)+1) ).any() ); |
| 162 | VERIFY( (m1 > (m1(r,c)-1) ).any() ); |
| 163 | VERIFY( (m1 < (m1(r,c)+1) ).any() ); |
| 164 | VERIFY( (m1 == m1(r,c) ).any() ); |
| 165 | |
| 166 | // comparisons scalar to array |
| 167 | VERIFY( ( (m1(r,c)+1) != m1).any() ); |
| 168 | VERIFY( ( (m1(r,c)-1) < m1).any() ); |
| 169 | VERIFY( ( (m1(r,c)+1) > m1).any() ); |
| 170 | VERIFY( ( m1(r,c) == m1).any() ); |
| 171 | |
| 172 | // test Select |
| 173 | VERIFY_IS_APPROX( (m1<m2).select(m1,m2), m1.cwiseMin(m2) ); |
| 174 | VERIFY_IS_APPROX( (m1>m2).select(m1,m2), m1.cwiseMax(m2) ); |
| 175 | Scalar mid = (m1.cwiseAbs().minCoeff() + m1.cwiseAbs().maxCoeff())/Scalar(2); |
| 176 | for (int j=0; j<cols; ++j) |
| 177 | for (int i=0; i<rows; ++i) |
| 178 | m3(i,j) = abs(m1(i,j))<mid ? 0 : m1(i,j); |
| 179 | VERIFY_IS_APPROX( (m1.abs()<ArrayType::Constant(rows,cols,mid)) |
| 180 | .select(ArrayType::Zero(rows,cols),m1), m3); |
| 181 | // shorter versions: |
| 182 | VERIFY_IS_APPROX( (m1.abs()<ArrayType::Constant(rows,cols,mid)) |
| 183 | .select(0,m1), m3); |
| 184 | VERIFY_IS_APPROX( (m1.abs()>=ArrayType::Constant(rows,cols,mid)) |
| 185 | .select(m1,0), m3); |
| 186 | // even shorter version: |