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/* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 <algorithm>
#include <drizzled/field/boolean.h>
#include <drizzled/type/boolean.h>
#include <drizzled/error.h>
#include <drizzled/internal/my_sys.h>
#include <drizzled/session.h>
#include <drizzled/table.h>
#include <drizzled/temporal.h>
union set_true_t {
unsigned char byte;
bool is_true:1;
set_true_t()
{
is_true= true;
}
} set_true;
namespace drizzled
{
namespace field
{
Boolean::Boolean(unsigned char *ptr_arg,
uint32_t len_arg,
unsigned char *null_ptr_arg,
unsigned char null_bit_arg,
const char *field_name_arg,
bool ansi_display_arg) :
Field(ptr_arg, len_arg,
null_ptr_arg,
null_bit_arg,
Field::NONE,
field_name_arg),
ansi_display(ansi_display_arg)
{
}
int Boolean::cmp(const unsigned char *a, const unsigned char *b)
{
return memcmp(a, b, sizeof(unsigned char));
}
int Boolean::store(const char *from, uint32_t length, const CHARSET_INFO * const )
{
ASSERT_COLUMN_MARKED_FOR_WRITE;
bool result;
if (not type::convert(result, from, length))
{
my_error(ER_INVALID_BOOLEAN_VALUE, MYF(0), from);
return 1;
}
if (result)
{
setTrue();
}
else
{
setFalse();
}
return 0;
}
int Boolean::store(int64_t nr, bool )
{
ASSERT_COLUMN_MARKED_FOR_WRITE;
nr == 0 ? setFalse() : setTrue();
return 0;
}
int Boolean::store(double nr)
{
ASSERT_COLUMN_MARKED_FOR_WRITE;
nr == 0 ? setFalse() : setTrue();
return 0;
}
int Boolean::store_decimal(const drizzled::type::Decimal *dec)
{
ASSERT_COLUMN_MARKED_FOR_WRITE;
if (dec->isZero())
{
setFalse();
return 0;
}
setTrue();
return 0;
}
void Boolean::sql_type(String &res) const
{
res.set_ascii(STRING_WITH_LEN("boolean"));
}
double Boolean::val_real() const
{
ASSERT_COLUMN_MARKED_FOR_READ;
return isTrue();
}
int64_t Boolean::val_int() const
{
ASSERT_COLUMN_MARKED_FOR_READ;
return isTrue();
}
String *Boolean::val_str(String *val_buffer, String *) const
{
ASSERT_COLUMN_MARKED_FOR_READ;
(void)type::convert(*val_buffer, isTrue(), ansi_display);
return val_buffer;
}
type::Decimal *Boolean::val_decimal(type::Decimal *dec) const
{
if (isTrue())
{
int2_class_decimal(E_DEC_OK, 1, false, dec);
return dec;
}
dec->set_zero();
return dec;
}
void Boolean::sort_string(unsigned char *to, uint32_t length_arg)
{
memcpy(to, ptr, length_arg);
}
void Boolean::setTrue()
{
ptr[0]= set_true.byte;
}
} /* namespace field */
} /* namespace drizzled */
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