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Add vectorization of Reverse (was more tricky than I thought) and

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simplify the index based functions
This commit is contained in:
Gael Guennebaud
2009-02-06 12:40:38 +00:00
parent 4dc4ab3abb
commit f5d96df800
5 changed files with 65 additions and 95 deletions
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20
test/reverse.cpp
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@@ -103,20 +103,6 @@ template<typename MatrixType> void reverse(const MatrixType& m)
}
}
int ind = ei_random<int>(0, (rows*cols) - 1);
/* Reverse::coeff(int) is for vector only */
/*
MatrixType m1_reversed(m1.reverse());
VERIFY_IS_APPROX( m1_reversed.reverse().coeff( ind ), m1.coeff( ind ) );
MatrixType m1c_reversed = m1.colwise().reverse();
VERIFY_IS_APPROX( m1c_reversed.colwise().reverse().coeff( ind ), m1.coeff( ind ) );
MatrixType m1r_reversed = m1.rowwise().reverse();
VERIFY_IS_APPROX( m1r_reversed.rowwise().reverse().coeff( ind ), m1.coeff( ind ) );
*/
/*
cout << "m1:" << endl << m1 << endl;
cout << "m1c_reversed:" << endl << m1c_reversed << endl;
@@ -178,12 +164,14 @@ void test_reverse()
{
for(int i = 0; i < g_repeat; i++) {
CALL_SUBTEST( reverse(Matrix<float, 1, 1>()) );
CALL_SUBTEST( reverse(Matrix2f()) );
CALL_SUBTEST( reverse(Matrix4f()) );
CALL_SUBTEST( reverse(Matrix4d()) );
CALL_SUBTEST( reverse(MatrixXcf(3, 3)) );
CALL_SUBTEST( reverse(MatrixXi(8, 12)) );
CALL_SUBTEST( reverse(MatrixXi(6, 3)) );
CALL_SUBTEST( reverse(MatrixXcd(20, 20)) );
CALL_SUBTEST( reverse(Matrix<float, 100, 100>()) );
CALL_SUBTEST( reverse(Matrix<long double,Dynamic,Dynamic>(10,10)) );
CALL_SUBTEST( reverse(Matrix<float,Dynamic,Dynamic,RowMajor>(6,3)) );
}
Vector4f x; x << 1, 2, 3, 4;
Vector4f y; y << 4, 3, 2, 1;