1 files changed, 44 insertions, 0 deletions
diff --git a/sql/sql_type_int.h b/sql/sql_type_int.h
new file mode 100644
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+++ b/sql/sql_type_int.h
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+/* Copyright (c) 2006, 2010, Oracle and/or its affiliates.
+   Copyright (c) 2011, 2016, MariaDB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
+
+#ifndef SQL_TYPE_INT_INCLUDED
+#define SQL_TYPE_INT_INCLUDED
+
+
+// A longlong/ulonglong hybrid. Good to store results of val_int().
+class Longlong_hybrid
+{
+protected:
+  longlong m_value;
+  bool m_unsigned;
+public:
+  Longlong_hybrid(longlong nr, bool unsigned_flag)
+   :m_value(nr), m_unsigned(unsigned_flag)
+  { }
+  longlong value() const { return m_value; }
+  bool is_unsigned() const { return m_unsigned; }
+  bool neg() const { return m_value < 0 && !m_unsigned; }
+  ulonglong abs() const
+  {
+    if (m_unsigned)
+      return (ulonglong) m_value;
+    if (m_value == LONGLONG_MIN) // avoid undefined behavior
+      return ((ulonglong) LONGLONG_MAX) + 1;
+    return m_value < 0 ? -m_value : m_value;
+  }
+};
+
+#endif // SQL_TYPE_INT_INCLUDED