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  • Committer: Brian Aker
  • Date: 2008-09-12 06:42:41 UTC
  • mto: (322.2.8 stdize-code)
  • mto: This revision was merged to the branch mainline in revision 386.
  • Revision ID: brian@tangent.org-20080912064241-520utxq2078904l2
Remove 3 byte UTF8 collation

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drizzled/function/unsigned.cc
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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>
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#include CSTDINT_H
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#include <drizzled/function/unsigned.h>
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#include <drizzled/current_session.h>
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#include <drizzled/error.h>
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void Item_func_unsigned::print(String *str, enum_query_type query_type)
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{
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  str->append(STRING_WITH_LEN("cast("));
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  args[0]->print(str, query_type);
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  str->append(STRING_WITH_LEN(" as unsigned)"));
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}
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int64_t Item_func_unsigned::val_int()
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{
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  int64_t value;
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  int error;
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  if (args[0]->cast_to_int_type() == DECIMAL_RESULT)
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  {
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    my_decimal tmp, *dec= args[0]->val_decimal(&tmp);
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    if (!(null_value= args[0]->null_value))
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      my_decimal2int(E_DEC_FATAL_ERROR, dec, 1, &value);
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    else
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      value= 0;
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    return value;
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  }
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  else if (args[0]->cast_to_int_type() != STRING_RESULT ||
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           args[0]->result_as_int64_t())
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  {
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    value= args[0]->val_int();
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    null_value= args[0]->null_value;
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    return value;
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  }
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  value= val_int_from_str(&error);
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  if (error < 0)
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    push_warning(current_session, DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_UNKNOWN_ERROR,
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                 "Cast to unsigned converted negative integer to it's "
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                 "positive complement");
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  return value;
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}
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