From efcea3a80da7c4479d5fe168435ecc9fd06bdc72 Mon Sep 17 00:00:00 2001
From: John Turner <jturner.usa@gmail.com>
Date: Sun, 14 Sep 2025 00:16:10 -0400
Subject: Squashed 'subprojects/boost-sqlite/' content from commit 3378e35

git-subtree-dir: subprojects/boost-sqlite
git-subtree-split: 3378e353705271e569cf4ba15c467b840a39798c
---
 include/boost/sqlite/allocator.hpp | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 include/boost/sqlite/allocator.hpp

(limited to 'include/boost/sqlite/allocator.hpp')

diff --git a/include/boost/sqlite/allocator.hpp b/include/boost/sqlite/allocator.hpp
new file mode 100644
index 0000000..f449475
--- /dev/null
+++ b/include/boost/sqlite/allocator.hpp
@@ -0,0 +1,48 @@
+//
+// 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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