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bug #1310: workaround a compilation regression from 3.2 regarding triangular * homogeneous

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This commit is contained in:
Gael Guennebaud 2016-09-30 22:49:59 +02:00
parent 67b4f45836
commit 8b84801f7f
2 changed files with 14 additions and 0 deletions
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12
Eigen/src/Geometry/Homogeneous.h
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@ -402,6 +402,18 @@ struct generic_product_impl<Lhs, Homogeneous<RhsArg,Vertical>, DenseShape, Homog
}
};
// TODO: the following specialization is to address a regression from 3.2 to 3.3
// In the future, this path should be optimized.
template<typename Lhs, typename RhsArg, int ProductTag>
struct generic_product_impl<Lhs, Homogeneous<RhsArg,Vertical>, TriangularShape, HomogeneousShape, ProductTag>
{
template<typename Dest>
static void evalTo(Dest& dst, const Lhs& lhs, const Homogeneous<RhsArg,Vertical>& rhs)
{
dst.noalias() = lhs * rhs.eval();
}
};
template<typename Lhs,typename Rhs>
struct homogeneous_left_product_refactoring_helper
{

2
test/geo_homogeneous.cpp
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@ -111,6 +111,8 @@ template<typename Scalar,int Size> void homogeneous(void)
VERIFY_IS_APPROX( (v0.transpose().homogeneous() .lazyProduct( t2 )).hnormalized(), (v0.transpose().homogeneous()*t2).hnormalized() );
VERIFY_IS_APPROX( (pts.transpose().rowwise().homogeneous() .lazyProduct( t2 )).rowwise().hnormalized(), (pts1.transpose()*t2).rowwise().hnormalized() );
VERIFY_IS_APPROX( (t2.template triangularView<Lower>() * v0.homogeneous()).eval(), (t2.template triangularView<Lower>()*hv0) );
}
void test_geo_homogeneous()