~drizzle-trunk/drizzle/development

492.3.9 by Lee
code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; version 2 of the License.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <drizzled/server_includes.h>
642.1.30 by Lee
move math functions to drizzled/function/math directory
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#include <drizzled/function/math/abs.h>
572.1.4 by Monty Taylor
Removed a bunch of unusued tests and defines from autoconf.
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492.3.9 by Lee
code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory
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double Item_func_abs::real_op()
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{
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  double value= args[0]->val_real();
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  null_value= args[0]->null_value;
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  return fabs(value);
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}
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int64_t Item_func_abs::int_op()
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{
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  int64_t value= args[0]->val_int();
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  if ((null_value= args[0]->null_value))
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    return 0;
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  return (value >= 0) || unsigned_flag ? value : -value;
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}
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my_decimal *Item_func_abs::decimal_op(my_decimal *decimal_value)
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{
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  my_decimal val, *value= args[0]->val_decimal(&val);
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  if (!(null_value= args[0]->null_value))
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  {
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    my_decimal2decimal(value, decimal_value);
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    if (decimal_value->sign())
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      my_decimal_neg(decimal_value);
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    return decimal_value;
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  }
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  return 0;
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}
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void Item_func_abs::fix_length_and_dec()
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{
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  Item_func_num1::fix_length_and_dec();
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  unsigned_flag= args[0]->unsigned_flag;
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}
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