1 files changed, 47 insertions, 0 deletions
diff --git a/sql/sql_type_real.h b/sql/sql_type_real.h
new file mode 100644
index 00000000..5a484fbe
--- /dev/null
+++ b/sql/sql_type_real.h
@@ -0,0 +1,47 @@
+/* Copyright (c) 2019 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_REAL_INCLUDED
+#define SQL_TYPE_REAL_INCLUDED
+
+#include <cmath>
+
+class Float
+{
+  float m_value;
+public:
+  Float(float nr)
+   :m_value(nr)
+  {
+    DBUG_ASSERT(!std::isnan(nr));
+    DBUG_ASSERT(!std::isinf(nr));
+  }
+  Float(double nr)
+   :m_value((float) nr)
+  {
+    DBUG_ASSERT(!std::isnan(nr));
+    DBUG_ASSERT(!std::isinf(nr));
+    DBUG_ASSERT(nr <= FLT_MAX);
+    DBUG_ASSERT(nr >= -FLT_MAX);
+  }
+  Float(const uchar *ptr)
+  {
+    float4get(m_value, ptr);
+  }
+  bool to_string(String *to, uint dec) const;
+};
+
+
+#endif // SQL_TYPE_REAL_INCLUDED