nerdcruft/libcruft-util
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allocator: return a view, not a pointer. for safety.

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This commit is contained in:
Danny Robson 2018-04-20 15:03:35 +10:00
parent 443112b33c
commit cbce5803b5
1 changed files with 15 additions and 10 deletions
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25
alloc/allocator.hpp
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@ -11,16 +11,17 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
* Copyright 2015-2018 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_ALLOC_ALLOCATOR_HPP
#define __UTIL_ALLOC_ALLOCATOR_HPP
#pragma once
#include "../view.hpp"
#include <cstddef>
#include <utility>
// C++11 allocator concept conformant allocator adaptor, going from our
// C++11 allocator concept conformant(ish) allocator adaptor, going from our
// allocator interface to that of the STL and friends.
namespace util::alloc {
template <typename ValueT, typename BackingT>
@ -35,12 +36,18 @@ namespace util::alloc {
{ ; }
ValueT*
util::view<ValueT*>
allocate (size_t count)
{
return reinterpret_cast<ValueT*> (
m_backing.template allocate (sizeof (ValueT) * count)
);
return {
reinterpret_cast<ValueT*> (
m_backing.template allocate (
sizeof (ValueT) * count,
alignof (ValueT)
)
),
count
};
}
@ -65,5 +72,3 @@ namespace util::alloc {
return allocator<ValueT,BackingT> (backing);
}
}
#endif