48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __POINTER_HPP
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#define __POINTER_HPP
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#include <cstddef>
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#include <cstdint>
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namespace util {
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///////////////////////////////////////////////////////////////////////////
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template <typename T>
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T*
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align (T *_ptr, size_t alignment)
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{
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auto ptr = reinterpret_cast<uintptr_t> (_ptr);
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if (ptr % alignment)
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ptr += alignment - ptr % alignment;
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return reinterpret_cast<T*> (ptr);
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}
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//-------------------------------------------------------------------------
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inline uintptr_t
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align (uintptr_t ptr, size_t alignment)
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{
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return reinterpret_cast<uintptr_t> (
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align (reinterpret_cast<void*> (ptr), alignment)
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);
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}
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}
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#endif
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