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add writeable IndexedView

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This commit is contained in:
Gael Guennebaud
2017-01-10 17:10:35 +01:00
parent c9d5e5c6da
commit d072fc4b14
3 changed files with 81 additions and 7 deletions
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15
test/indexed_view.cpp
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@@ -168,6 +168,12 @@ void check_indexed_view()
// Check fall-back to Block
{
VERIFY( is_same_type(A.col(0), A(all,0)) );
VERIFY( is_same_type(A.row(0), A(0,all)) );
VERIFY( is_same_type(A.block(0,0,2,2), A(seqN(0,2),seq(0,1))) );
VERIFY( is_same_type(A.middleRows(2,4), A(seqN(2,4),all)) );
VERIFY( is_same_type(A.middleCols(2,4), A(all,seqN(2,4))) );
const ArrayXXi& cA(A);
VERIFY( is_same_type(cA.col(0), cA(all,0)) );
VERIFY( is_same_type(cA.row(0), cA(0,all)) );
@@ -176,6 +182,15 @@ void check_indexed_view()
VERIFY( is_same_type(cA.middleCols(2,4), cA(all,seqN(2,4))) );
}
ArrayXXi A1=A, A2 = ArrayXXi::Random(4,4);
ArrayXi range25(4); range25 << 3,2,4,5;
A1(seqN(3,4),seq(2,5)) = A2;
VERIFY_IS_APPROX( A1.block(3,2,4,4), A2 );
A1 = A;
A2.setOnes();
A1(seq(6,3,-1),range25) = A2;
VERIFY_IS_APPROX( A1.block(3,2,4,4), A2 );
#if EIGEN_HAS_CXX11
VERIFY( (A(all, std::array<int,4>{{1,3,2,4}})).ColsAtCompileTime == 4);