devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Implement compound assignments using evaluator of SelfCwiseBinaryOp.

Browse Source
This commit is contained in:
Jitse Niesen
2011-04-28 16:57:35 +01:00
parent 3b60d2dbc4
commit 06fb7cf470
4 changed files with 155 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
test/evaluators.cpp
View File

@@ -236,5 +236,29 @@ void test_evaluators()
VERIFY_IS_APPROX(mat1, mat1ref);
VERIFY_IS_APPROX(mat2, mat2ref);
}
{
// test compound assignment
const Matrix4d mat_const = Matrix4d::Random();
Matrix4d mat, mat_ref;
mat = mat_ref = Matrix4d::Identity();
add_assign_using_evaluator(mat, mat_const);
mat_ref += mat_const;
VERIFY_IS_APPROX(mat, mat_ref);
subtract_assign_using_evaluator(mat.row(1), 2*mat.row(2));
mat_ref.row(1) -= 2*mat_ref.row(2);
VERIFY_IS_APPROX(mat, mat_ref);
const ArrayXXf arr_const = ArrayXXf::Random(5,3);
ArrayXXf arr, arr_ref;
arr = arr_ref = ArrayXXf::Constant(5, 3, 0.5);
multiply_assign_using_evaluator(arr, arr_const);
arr_ref *= arr_const;
VERIFY_IS_APPROX(arr, arr_ref);
divide_assign_using_evaluator(arr.row(1), arr.row(2) + 1);
arr_ref.row(1) /= (arr_ref.row(2) + 1);
VERIFY_IS_APPROX(arr, arr_ref);
}
}