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/*
* Copyright 2008-2013 NVIDIA Corporation
* Modifications Copyright© 2019 Advanced Micro Devices, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/iterator/discard_iterator.h>
#include "test_header.hpp"
using namespace thrust;
TEST(DiscardIteratorTests, UsingHip)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
ASSERT_EQ(THRUST_DEVICE_SYSTEM, THRUST_DEVICE_SYSTEM_HIP);
}
TEST(DiscardIteratorTests, DiscardIteratorIncrement)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
discard_iterator<> lhs(0);
discard_iterator<> rhs(0);
ASSERT_EQ(0, lhs - rhs);
lhs++;
ASSERT_EQ(1, lhs - rhs);
lhs++;
lhs++;
ASSERT_EQ(3, lhs - rhs);
lhs += 5;
ASSERT_EQ(8, lhs - rhs);
lhs -= 10;
ASSERT_EQ(-2, lhs - rhs);
}
TEST(DiscardIteratorTests, DiscardIteratorComparison)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
discard_iterator<> iter1(0);
discard_iterator<> iter2(0);
ASSERT_EQ(0, iter1 - iter2);
ASSERT_EQ(true, iter1 == iter2);
iter1++;
ASSERT_EQ(1, iter1 - iter2);
ASSERT_EQ(false, iter1 == iter2);
iter2++;
ASSERT_EQ(0, iter1 - iter2);
ASSERT_EQ(true, iter1 == iter2);
iter1 += 100;
iter2 += 100;
ASSERT_EQ(0, iter1 - iter2);
ASSERT_EQ(true, iter1 == iter2);
}
TEST(DiscardIteratorTests, MakeDiscardIterator)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
discard_iterator<> iter0 = make_discard_iterator(13);
*iter0 = 7;
discard_iterator<> iter1 = make_discard_iterator(7);
*iter1 = 13;
ASSERT_EQ(6, iter0 - iter1);
}
TEST(DiscardIteratorTests, ZippedDiscardIterator)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
using IteratorTuple1 = tuple<discard_iterator<>>;
using ZipIterator1 = zip_iterator<IteratorTuple1>;
IteratorTuple1 t = make_tuple(make_discard_iterator());
ZipIterator1 z_iter1_first = make_zip_iterator(t);
ZipIterator1 z_iter1_last = z_iter1_first + 10;
for(; z_iter1_first != z_iter1_last; ++z_iter1_first)
{
;
}
ASSERT_EQ(10, get<0>(z_iter1_first.get_iterator_tuple()) - make_discard_iterator());
using IteratorTuple2 = tuple<int*, discard_iterator<>>;
using ZipIterator2 = zip_iterator<IteratorTuple2>;
ZipIterator2 z_iter_first = make_zip_iterator(make_tuple((int*)0, make_discard_iterator()));
ZipIterator2 z_iter_last = z_iter_first + 10;
for(; z_iter_first != z_iter_last; ++z_iter_first)
{
;
}
ASSERT_EQ(10, get<1>(z_iter_first.get_iterator_tuple()) - make_discard_iterator());
}
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