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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* 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
*/
#include <config.h>
#include <drizzled/field.h>
#include <drizzled/hybrid_type.h>
#include <drizzled/hybrid_type_traits.h>
#include <drizzled/item.h>
#include <math.h>
namespace drizzled
{
static const Hybrid_type_traits real_traits_instance;
Item_result Hybrid_type_traits::type() const
{
return REAL_RESULT;
}
void Hybrid_type_traits::fix_length_and_dec(Item *item, Item *arg) const
{
item->decimals= NOT_FIXED_DEC;
item->max_length= item->float_length(arg->decimals);
}
/* Hybrid_type operations. */
void Hybrid_type_traits::set_zero(Hybrid_type *val) const
{
val->real= 0.0;
}
void Hybrid_type_traits::add(Hybrid_type *val, Field *f) const
{
val->real+= f->val_real();
}
void Hybrid_type_traits::div(Hybrid_type *val, uint64_t u) const
{
val->real/= uint64_t2double(u);
}
int64_t Hybrid_type_traits::val_int(Hybrid_type *val,
bool) const
{
return (int64_t) rint(val->real);
}
double Hybrid_type_traits::val_real(Hybrid_type *val) const
{
return val->real;
}
type::Decimal *
Hybrid_type_traits::val_decimal(Hybrid_type *val, type::Decimal *) const
{
double2_class_decimal(E_DEC_FATAL_ERROR, val->real, val->dec_buf);
return val->dec_buf;
}
String *
Hybrid_type_traits::val_str(Hybrid_type *val, String *to,
uint8_t decimals) const
{
to->set_real(val->real, decimals, &my_charset_bin);
return to;
}
const Hybrid_type_traits *Hybrid_type_traits::instance()
{
return &real_traits_instance;
}
Hybrid_type_traits::Hybrid_type_traits()
{}
Hybrid_type_traits::~Hybrid_type_traits()
{}
} /* namespace drizzled */
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