pointer: add pointer align function

This commit is contained in:
Danny Robson 2015-11-17 17:21:14 +11:00
parent 7dcaca2681
commit cc12ed8943
2 changed files with 38 additions and 0 deletions

View File

@ -250,6 +250,7 @@ UTIL_FILES = \
point.cpp \
point.hpp \
point.ipp \
pointer.hpp \
polynomial.cpp \
polynomial.hpp \
polynomial.ipp \

37
pointer.hpp Normal file
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@ -0,0 +1,37 @@
/*
* 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.
*
* Copyright 2011 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __POINTER_HPP
#define __POINTER_HPP
#include <cstddef>
#include <cstdint>
namespace util {
///////////////////////////////////////////////////////////////////////////
template <typename T>
T*
align (T *_ptr, size_t alignment)
{
auto ptr = reinterpret_cast<uintptr_t> (_ptr);
if (ptr % alignment)
ptr += alignment - ptr % alignment;
return reinterpret_cast<T*> (ptr);
}
}
#endif