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Fix aliasing issue in sparse matrix assignment.

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(m=-m; or m=m.transpose(); with m sparse work again)
(transplanted from e75b1eb883
)
This commit is contained in:
Gael Guennebaud
2012-07-25 09:33:50 +02:00
parent e546ee315a
commit 4691a4e4b5
3 changed files with 26 additions and 11 deletions
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6
test/sparse_basic.cpp
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@@ -193,6 +193,12 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
// sparse cwise* dense
VERIFY_IS_APPROX(m3.cwiseProduct(refM4), refM3.cwiseProduct(refM4));
// VERIFY_IS_APPROX(m3.cwise()/refM4, refM3.cwise()/refM4);
// test aliasing
VERIFY_IS_APPROX((m1 = -m1), (refM1 = -refM1));
VERIFY_IS_APPROX((m1 = m1.transpose()), (refM1 = refM1.transpose().eval()));
VERIFY_IS_APPROX((m1 = -m1.transpose()), (refM1 = -refM1.transpose().eval()));
VERIFY_IS_APPROX((m1 += -m1), (refM1 += -refM1));
}
// test transpose