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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* 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.
*
*=========================================================================*/
// First include the header file to be tested:
#include "itkBitCast.h"
#include <gtest/gtest.h>
#include <cstring> // For memcmp.
namespace
{
template <typename TDestination, class TSource>
void
Expect_return_value_is_bitwise_equal_to_function_argument(const TSource & source)
{
const auto result = itk::bit_cast<TDestination>(source);
EXPECT_EQ(std::memcmp(&result, &source, sizeof(TSource)), 0);
}
} // namespace
TEST(BitCast, ResultIsBitwiseEqualToArgument)
{
for (const int i : { -1, 0, 1 })
{
Expect_return_value_is_bitwise_equal_to_function_argument<unsigned int>(i);
}
int value;
(void)value;
Expect_return_value_is_bitwise_equal_to_function_argument<intptr_t>(&value);
}
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