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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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 <gtest/gtest.h>
#include <util.h>
TEST(benchmark, memory_align) {
std::vector<char> buf(100);
for (size_t alignment = 1; alignment <= 32; alignment *= 2) {
for (size_t or_mask = 0; or_mask < alignment; ++or_mask) {
uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedMemory(buf.data(), alignment,
or_mask));
ASSERT_EQ(aligned_ptr % alignment, or_mask);
ASSERT_EQ(aligned_ptr & alignment, alignment);
}
}
}
TEST(benchmark, ptr_align) {
std::vector<char> buf;
for (size_t alignment = 1; alignment <= 2048; alignment *= 2) {
uintptr_t aligned_ptr = reinterpret_cast<uintptr_t>(GetAlignedPtr(&buf, alignment, 100));
ASSERT_EQ(aligned_ptr & alignment, alignment);
ASSERT_EQ(aligned_ptr & (alignment - 1), 0u);
}
}
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