release/src/router/mysql/extra/yassl/taocrypt/mySTL/stdexcept.hpp

   1 /*
   2    Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; version 2 of the License.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program; see the file COPYING. If not, write to the
  15    Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  16    MA  02110-1301  USA.
  17 */
  18
  19
  20 /* mySTL memory implements exception, runtime_error
  21  *
  22  */
  23
  24 #ifndef mySTL_STDEXCEPT_HPP
  25 #define mySTL_STDEXCEPT_HPP
  26
  27
  28 #include <string.h>  // strncpy
  29 #include <stdlib.h>  // size_t
  30
  31
  32 namespace mySTL {
  33
  34
  35 class exception {
  36 public:
  37     exception() {}
  38     virtual ~exception() {}   // to shut up compiler warnings
  39
  40     virtual const char* what() const { return ""; }
  41
  42     // for compiler generated call, never used
  43     static void operator delete(void*) { }
  44 private:
  45     // don't allow dynamic creation of exceptions
  46     static void* operator new(size_t);
  47 };
  48
  49
  50 class named_exception : public exception {
  51 public:
  52     enum { NAME_SIZE = 80 };
  53
  54     explicit named_exception(const char* str)
  55     {
  56         strncpy(name_, str, NAME_SIZE);
  57         name_[NAME_SIZE - 1] = 0;
  58     }
  59
  60     virtual const char* what() const { return name_; }
  61 private:
  62     char name_[NAME_SIZE];
  63 };
  64
  65
  66 class runtime_error : public named_exception {
  67 public:
  68     explicit runtime_error(const char* str) : named_exception(str) {}
  69 };
  70
  71
  72
  73
  74 } // namespace mySTL
  75
  76 #endif // mySTL_STDEXCEPT_HPP