libs/multi_array/test/compare.cpp
// Copyright 2002 The Trustees of Indiana University.
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Boost.MultiArray Library
// Authors: Ronald Garcia
// Jeremy Siek
// Andrew Lumsdaine
// See http://www.boost.org/libs/multi_array for documentation.
#include <boost/multi_array.hpp>
#include <boost/core/lightweight_test.hpp>
#include <algorithm>
#include <list>
int
main()
{
typedef boost::multi_array<double, 3> array;
typedef array::size_type size_type;
boost::array<size_type,3> sizes = { { 3, 3, 3 } };
const size_type num_elements = 27;
// Copy Constructor
{
array A(sizes);
std::vector<double> vals(num_elements, 4.5);
A.assign(vals.begin(),vals.end());
array B(A);
BOOST_TEST(A == B);
BOOST_TEST(B == A);
BOOST_TEST(A[0] == B[0]);
}
// Assignment Operator
{
array A(sizes), B(sizes);
std::vector<double> vals(num_elements, 4.5);
A.assign(vals.begin(),vals.end());
B = A;
BOOST_TEST(A == B);
BOOST_TEST(B == A);
BOOST_TEST(B[0] == A[0]);
typedef array::index_range range;
array::index_gen indices;
array::array_view<2>::type C = A[indices[2][range()][range()]];
array::array_view<2>::type D = B[indices[2][range()][range()]];
BOOST_TEST(C == D);
}
// Different Arrays
{
array A(sizes), B(sizes);
std::vector<double> valsA(num_elements, 4.5);
std::vector<double> valsB(num_elements, 2.5);
A.assign(valsA.begin(),valsA.end());
B.assign(valsB.begin(),valsB.end());
BOOST_TEST(A != B);
BOOST_TEST(B != A);
BOOST_TEST(A[0] != B[0]);
typedef array::index_range range;
array::index_gen indices;
array::array_view<2>::type C = A[indices[2][range()][range()]];
array::array_view<2>::type D = B[indices[2][range()][range()]];
BOOST_TEST(C != D);
}
// Comparisons galore!
{
array A(sizes), B(sizes);
double valsA[] = {
0, 0, 0,
0, 0, 0,
0, 0, 0,
1, 1, 1,
1, 1, 1,
1, 1, 1,
2, 2, 2,
2, 2, 2,
2, 2, 2
};
double valsB[] = {
0, 0, 0,
0, 0, 0,
0, 0, 0,
1, 1, 1,
1, 1, 1,
1, 1, 1,
2, 2, 2,
2, 2, 2,
2, 2, 1
};
A.assign(valsA,valsA+num_elements);
B.assign(valsB,valsB+num_elements);
BOOST_TEST(B < A);
BOOST_TEST(A > B);
BOOST_TEST(B <= A);
BOOST_TEST(A >= B);
BOOST_TEST(B[0] == A[0]);
BOOST_TEST(B[2] < A[2]);
array C = A;
BOOST_TEST(C <= A);
BOOST_TEST(C >= A);
BOOST_TEST(!(C < A));
BOOST_TEST(!(C > A));
typedef array::index_range range;
array::index_gen indices;
array::array_view<2>::type D = A[indices[2][range()][range()]];
array::array_view<2>::type E = B[indices[2][range()][range()]];
BOOST_TEST(E < D);
BOOST_TEST(E <= D);
}
return boost::report_errors();
}