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/*
Copyright 2018 Google 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 "base/aligned_allocator.h"
#include <cstddef>
#include <vector>
#include "base/integral_types.h"
#include "third_party/googletest/googletest/include/gtest/gtest.h"
#include "base/simd_utils.h"
using vraudio::AlignedAllocator;
namespace {
// Helper method to test memory alignment.
template <size_t Alignment>
void TestAlignedAllocator() {
static const size_t kRuns = 1000;
for (size_t run = 0; run < kRuns; ++run) {
std::vector<float, AlignedAllocator<float, Alignment> > aligned_vector(1);
const bool is_aligned =
((reinterpret_cast<size_t>(&aligned_vector[0]) & (Alignment - 1)) == 0);
EXPECT_TRUE(is_aligned);
}
}
} // namespace
// Allocates multiple std::vectors using the AlignedAllocator and tests if the
// allocated memory is aligned.
TEST(AlignedAlocatorTest, TestAlignment) {
TestAlignedAllocator<2>();
TestAlignedAllocator<4>();
TestAlignedAllocator<16>();
TestAlignedAllocator<32>();
TestAlignedAllocator<64>();
}
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