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Implement swap using evaluators.

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This commit is contained in:
Jitse Niesen
2011-04-28 15:52:15 +01:00
parent 2d11041e24
commit 3b60d2dbc4
4 changed files with 107 additions and 5 deletions
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24
test/evaluators.cpp
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@@ -214,5 +214,27 @@ void test_evaluators()
copy_using_evaluator(mat1.diagonal<-1>(), mat1.diagonal(1));
mat2.diagonal<-1>() = mat2.diagonal(1);
VERIFY_IS_APPROX(mat1, mat2);
VERIFY_IS_APPROX(mat1, mat2);
{
// test swapping
MatrixXd mat1, mat2, mat1ref, mat2ref;
mat1ref = mat1 = MatrixXd::Random(6, 6);
mat2ref = mat2 = 2 * mat1 + MatrixXd::Identity(6, 6);
swap_using_evaluator(mat1, mat2);
mat1ref.swap(mat2ref);
VERIFY_IS_APPROX(mat1, mat1ref);
VERIFY_IS_APPROX(mat2, mat2ref);
swap_using_evaluator(mat1.block(0, 0, 3, 3), mat2.block(3, 3, 3, 3));
mat1ref.block(0, 0, 3, 3).swap(mat2ref.block(3, 3, 3, 3));
VERIFY_IS_APPROX(mat1, mat1ref);
VERIFY_IS_APPROX(mat2, mat2ref);
swap_using_evaluator(mat1.row(2), mat2.col(3).transpose());
mat1.row(2).swap(mat2.col(3).transpose());
VERIFY_IS_APPROX(mat1, mat1ref);
VERIFY_IS_APPROX(mat2, mat2ref);
}
}