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// Copyright (C) 2015-2025 Jonathan Müller and foonathan/memory contributors
// SPDX-License-Identifier: Zlib
#ifndef FOONATHAN_MEMORY_NEW_ALLOCATOR_HPP_INCLUDED
#define FOONATHAN_MEMORY_NEW_ALLOCATOR_HPP_INCLUDED
/// \file
/// Class \ref foonathan::memory::new_allocator.
#include "detail/lowlevel_allocator.hpp"
#include "config.hpp"
#if FOONATHAN_MEMORY_EXTERN_TEMPLATE
#include "allocator_traits.hpp"
#endif
namespace foonathan
{
namespace memory
{
struct allocator_info;
namespace detail
{
struct new_allocator_impl
{
static allocator_info info() noexcept;
static void* allocate(std::size_t size, std::size_t) noexcept;
static void deallocate(void* ptr, std::size_t size, std::size_t) noexcept;
static std::size_t max_node_size() noexcept;
};
FOONATHAN_MEMORY_LL_ALLOCATOR_LEAK_CHECKER(new_allocator_impl,
new_alloator_leak_checker)
} // namespace detail
/// A stateless \concept{concept_rawallocator,RawAllocator} that allocates memory using (nothrow) <tt>operator new</tt>.
/// If the operator returns \c nullptr, it behaves like \c new and loops calling \c std::new_handler,
/// but instead of throwing a \c std::bad_alloc exception, it throws \ref out_of_memory.
/// \ingroup allocator
using new_allocator =
FOONATHAN_IMPL_DEFINED(detail::lowlevel_allocator<detail::new_allocator_impl>);
#if FOONATHAN_MEMORY_EXTERN_TEMPLATE
extern template class detail::lowlevel_allocator<detail::new_allocator_impl>;
extern template class allocator_traits<new_allocator>;
#endif
} // namespace memory
} // namespace foonathan
#endif // FOONATHAN_MEMORY_NEW_ALLOCATOR_HPP_INCLUDED
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