From 26e36b3a9d7b49d46ecfa69b447482251acba8ac Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Wed, 24 Jan 2024 16:53:38 +0300
Subject: Turn libodb repository into package for muti-package repository

---
 libodb/odb/std-unordered-map-traits.hxx | 133 ++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 libodb/odb/std-unordered-map-traits.hxx

(limited to 'libodb/odb/std-unordered-map-traits.hxx')

diff --git a/libodb/odb/std-unordered-map-traits.hxx b/libodb/odb/std-unordered-map-traits.hxx
new file mode 100644
index 0000000..461eb06
--- /dev/null
+++ b/libodb/odb/std-unordered-map-traits.hxx
@@ -0,0 +1,133 @@
+// file      : odb/std-unordered-map-traits.hxx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_STD_UNORDERED_MAP_TRAITS_HXX
+#define ODB_STD_UNORDERED_MAP_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <utility>       // std::move
+#include <unordered_map>
+
+#include <odb/container-traits.hxx>
+
+namespace odb
+{
+  template <typename K, typename V, typename H, typename P, typename A>
+  class access::container_traits<std::unordered_map<K, V, H, P, A>>
+  {
+  public:
+    static const container_kind kind = ck_map;
+    static const bool smart = false;
+
+    typedef std::unordered_map<K, V, H, P, A> container_type;
+
+    typedef K key_type;
+    typedef V value_type;
+    typedef typename container_type::value_type pair_type;
+
+    typedef map_functions<key_type, value_type> functions;
+
+  public:
+    static void
+    persist (const container_type& c, const functions& f)
+    {
+      for (typename container_type::const_iterator i (c.begin ()),
+             e (c.end ()); i != e; ++i)
+        f.insert (i->first, i->second);
+    }
+
+    static void
+    load (container_type& c, bool more, const functions& f)
+    {
+      c.clear ();
+
+      while (more)
+      {
+        key_type k;
+        value_type v;
+        more = f.select (k, v);
+        c.insert (pair_type (std::move (k), std::move (v)));
+      }
+    }
+
+    static void
+    update (const container_type& c, const functions& f)
+    {
+      f.delete_ ();
+
+      for (typename container_type::const_iterator i (c.begin ()),
+             e (c.end ()); i != e; ++i)
+        f.insert (i->first, i->second);
+    }
+
+    static void
+    erase (const functions& f)
+    {
+      f.delete_ ();
+    }
+  };
+
+  // @@ Does multimap preserve insertion order of equal elements? The
+  // current implementation in the generated code does not guarantee
+  // this.
+  //
+  template <typename K, typename V, typename H, typename P, typename A>
+  class access::container_traits<std::unordered_multimap<K, V, H, P, A>>
+  {
+  public:
+    static const container_kind kind = ck_multimap;
+    static const bool smart = false;
+
+    typedef std::unordered_multimap<K, V, H, P, A> container_type;
+
+    typedef K key_type;
+    typedef V value_type;
+    typedef typename container_type::value_type pair_type;
+
+    typedef map_functions<key_type, value_type> functions;
+
+  public:
+    static void
+    persist (const container_type& c, const functions& f)
+    {
+      for (typename container_type::const_iterator i (c.begin ()),
+             e (c.end ()); i != e; ++i)
+        f.insert (i->first, i->second);
+    }
+
+    static void
+    load (container_type& c, bool more, const functions& f)
+    {
+      c.clear ();
+
+      while (more)
+      {
+        key_type k;
+        value_type v;
+        more = f.select (k, v);
+        c.insert (pair_type (std::move (k), std::move (v)));
+      }
+    }
+
+    static void
+    update (const container_type& c, const functions& f)
+    {
+      f.delete_ ();
+
+      for (typename container_type::const_iterator i (c.begin ()),
+             e (c.end ()); i != e; ++i)
+        f.insert (i->first, i->second);
+    }
+
+    static void
+    erase (const functions& f)
+    {
+      f.delete_ ();
+    }
+  };
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_STD_UNORDERED_MAP_TRAITS_HXX
-- 
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