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Implement temporary-free path for "D.nolias() ?= C + A*B". (I thought it was already implemented)

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This commit is contained in:
Gael Guennebaud
2015-10-09 15:28:09 +02:00
parent a4cc4c1e5e
commit 6536b4bad7
5 changed files with 47 additions and 19 deletions
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9
test/product.h
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@@ -111,6 +111,15 @@ template<typename MatrixType> void product(const MatrixType& m)
vcres.noalias() -= m1.transpose() * v1;
VERIFY_IS_APPROX(vcres, vc2 - m1.transpose() * v1);
// test d ?= a+b*c rules
res.noalias() = square + m1 * m2.transpose();
VERIFY_IS_APPROX(res, square + m1 * m2.transpose());
res.noalias() += square + m1 * m2.transpose();
VERIFY_IS_APPROX(res, 2*(square + m1 * m2.transpose()));
res.noalias() -= square + m1 * m2.transpose();
VERIFY_IS_APPROX(res, square + m1 * m2.transpose());
tm1 = m1;
VERIFY_IS_APPROX(tm1.transpose() * v1, m1.transpose() * v1);
VERIFY_IS_APPROX(v1.transpose() * tm1, v1.transpose() * m1);