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//
// Copyright (c) 2022 Klemens Morgenstern (klemens.morgenstern@gmx.net)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_SQLITE_ALLOCATOR_HPP
#define BOOST_SQLITE_ALLOCATOR_HPP
#include <boost/sqlite/detail/config.hpp>
#include <cstddef>
#include <cstdint>
BOOST_SQLITE_BEGIN_NAMESPACE
template<typename T>
struct allocator
{
constexpr allocator() noexcept {}
constexpr allocator( const allocator& other ) noexcept {}
template< class U >
constexpr allocator( const allocator<U>& other ) noexcept {}
#if defined(SQLITE_4_BYTE_ALIGNED_MALLOC)
constexpr static std::size_t alignment = 4u;
#else
constexpr static std::size_t alignment = 8u;
#endif
static_assert(alignof(T) <= alignment, "T alignment can't be fulfilled by sqlite");
[[nodiscard]] T* allocate( std::size_t n )
{
auto p = static_cast<T*>(sqlite3_malloc64(n * sizeof(T)));
if (p == nullptr)
boost::throw_exception(std::bad_alloc());
return p;
}
void deallocate( T* p, std::size_t)
{
return sqlite3_free(p);
}
};
BOOST_SQLITE_END_NAMESPACE
#endif //BOOST_SQLITE_ALLOCATOR_HPP
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