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Viewing changes to drizzled/function/cast/signed.cc

  • Committer: Monty Taylor
  • Date: 2011-02-13 17:26:39 UTC
  • mfrom: (2157.2.2 give-in-to-pkg-config)
  • mto: This revision was merged to the branch mainline in revision 2166.
  • Revision ID: mordred@inaugust.com-20110213172639-nhy7i72sfhoq13ms
Merged in pkg-config fixes.

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drizzled/function/cast/signed.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) 2010 Brian Aker
 
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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; either version 2 of the License, or
 
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 *  (at your option) any later version.
 
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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 "config.h"
 
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#include <drizzled/charset_info.h>
 
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#include <drizzled/error.h>
 
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#include <drizzled/function/cast/signed.h>
 
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#include <drizzled/lex_string.h>
 
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namespace drizzled {
 
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namespace function {
 
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namespace cast {
 
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void Signed::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 signed)"));
 
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}
 
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int64_t Signed::val_int()
 
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{
 
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  int64_t value;
 
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  int error= 0;
 
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  char buff[MAX_FIELD_WIDTH];
 
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  String res_buffer(buff,sizeof(buff), &my_charset_bin);
 
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  String *res;
 
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  if (not (res= args[0]->val_str(&res_buffer)))
 
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  { 
 
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    null_value= 1; 
 
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    error= 0; 
 
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    return 0; 
 
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  } 
 
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  null_value= 0; 
 
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  char *end= res->ptr() + res->length(); 
 
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  value= res->charset()->cset->strntoull10rnd(res->charset(),
 
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                                              res->ptr(),
 
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                                              res->length(),
 
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                                              false, &end, &error);
 
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  if (error or (end != res->ptr() + res->length())) 
 
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  {
 
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    my_error(ER_INVALID_CAST_TO_SIGNED, MYF(0), res->c_str());
 
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  }
 
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  return value;
 
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}
 
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} // namespace cast
 
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} // namespace function
 
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} // namespace drizzled