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//
// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include <armnn/utility/TransformIterator.hpp>
#include <doctest/doctest.h>
#include <vector>
#include <iostream>
using namespace armnn;
TEST_SUITE("TransformIteratorSuite")
{
namespace
{
static int square(const int val)
{
return val * val;
}
static std::string concat(const std::string val)
{
return val + "a";
}
TEST_CASE("TransformIteratorTest")
{
struct WrapperTestClass
{
TransformIterator<decltype(&square), std::vector<int>::const_iterator> begin() const
{
return { m_Vec.begin(), &square };
}
TransformIterator<decltype(&square), std::vector<int>::const_iterator> end() const
{
return { m_Vec.end(), &square };
}
const std::vector<int> m_Vec{1, 2, 3, 4, 5};
};
struct WrapperStringClass
{
TransformIterator<decltype(&concat), std::vector<std::string>::const_iterator> begin() const
{
return { m_Vec.begin(), &concat };
}
TransformIterator<decltype(&concat), std::vector<std::string>::const_iterator> end() const
{
return { m_Vec.end(), &concat };
}
const std::vector<std::string> m_Vec{"a", "b", "c"};
};
WrapperStringClass wrapperStringClass;
WrapperTestClass wrapperTestClass;
int i = 1;
for(auto val : wrapperStringClass)
{
CHECK(val != "e");
i++;
}
i = 1;
for(auto val : wrapperTestClass)
{
CHECK(val == square(i));
i++;
}
i = 1;
// Check original vector is unchanged
for(auto val : wrapperTestClass.m_Vec)
{
CHECK(val == i);
i++;
}
std::vector<int> originalVec{1, 2, 3, 4, 5};
auto transformBegin = MakeTransformIterator(originalVec.begin(), &square);
auto transformEnd = MakeTransformIterator(originalVec.end(), &square);
std::vector<int> transformedVec(transformBegin, transformEnd);
i = 1;
for(auto val : transformedVec)
{
CHECK(val == square(i));
i++;
}
}
}
}
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