libcruft-util/alloc/raw/malloc.hpp

59 lines
1.5 KiB
C++

/*
* 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 2018 Danny Robson <danny@nerdcruft.net>
*/
#ifndef CRUFT_UTIL_ALLOC_RAW_MALLOC_HPP
#define CRUFT_UTIL_ALLOC_RAW_MALLOC_HPP
#include "../../view.hpp"
#include <cstddef>
namespace util::alloc::raw {
class malloc {
public:
template <typename T>
util::view<T*> allocate (size_t count)
{
return {
reinterpret_cast<T*> (malloc (sizeof (T) * count)),
count
};
}
template <typename T>
util::view<T*>
allocate (size_t count, size_t align)
{
void* ptr;
posix_memalign (&ptr, align, sizeof (T) * count);
if (!ptr)
throw std::bad_alloc ();
return { reinterpret_cast<T*> (ptr), count };
}
template <typename T>
void
deallocate (util::view<std::byte*> ptr)
{
::free (ptr.data ());
}
};
}
#endif