diff options
Diffstat (limited to 'sql/sql_type_real.h')
-rw-r--r-- | sql/sql_type_real.h | 47 |
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 |