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Add direct assignment of products

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This commit is contained in:
Gael Guennebaud
2013-12-02 16:37:58 +01:00
parent 7f917807c6
commit 34ca81b1bf
3 changed files with 56 additions and 4 deletions
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15
test/evaluators.cpp
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@@ -47,14 +47,14 @@ namespace Eigen {
void add_assign_using_evaluator(const DstXprType& dst, const SrcXprType& src)
{
typedef typename DstXprType::Scalar Scalar;
call_assignment(dst.const_cast_derived(), src.derived(), internal::add_assign_op<Scalar>());
call_assignment(const_cast<DstXprType&>(dst), src.derived(), internal::add_assign_op<Scalar>());
}
template<typename DstXprType, typename SrcXprType>
void subtract_assign_using_evaluator(const DstXprType& dst, const SrcXprType& src)
{
typedef typename DstXprType::Scalar Scalar;
call_assignment(dst.const_cast_derived(), src.derived(), internal::sub_assign_op<Scalar>());
call_assignment(const_cast<DstXprType&>(dst), src.derived(), internal::sub_assign_op<Scalar>());
}
template<typename DstXprType, typename SrcXprType>
@@ -151,6 +151,17 @@ void test_evaluators()
c = a*a;
copy_using_evaluator(a, prod(a,a));
VERIFY_IS_APPROX(a,c);
// check compound assignment of products
d = c;
add_assign_using_evaluator(c.noalias(), prod(a,b));
d.noalias() += a*b;
VERIFY_IS_APPROX(c, d);
d = c;
subtract_assign_using_evaluator(c.noalias(), prod(a,b));
d.noalias() -= a*b;
VERIFY_IS_APPROX(c, d);
}
{