libstdc++-v3/include/std/stdexcept

   1 // Standard exception classes  -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2005, 2007, 2009, 2010
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 /** @file include/stdexcept
  27  *  This is a Standard C++ Library header.
  28  */
  29
  30 //
  31 // ISO C++ 19.1  Exception classes
  32 //
  33
  34 #ifndef _GLIBCXX_STDEXCEPT
  35 #define _GLIBCXX_STDEXCEPT 1
  36
  37 #pragma GCC system_header
  38
  39 #include <exception>
  40 #include <string>
  41
  42 namespace std _GLIBCXX_VISIBILITY(default)
  43 {
  44 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  45
  46   /**
  47    * @addtogroup exceptions
  48    * @{
  49    */
  50
  51   /** Logic errors represent problems in the internal logic of a program;
  52    *  in theory, these are preventable, and even detectable before the
  53    *  program runs (e.g., violations of class invariants).
  54    *  @brief One of two subclasses of exception.
  55    */
  56   class logic_error : public exception
  57   {
  58     string _M_msg;
  59
  60   public:
  61     /** Takes a character string describing the error.  */
  62     explicit
  63     logic_error(const string& __arg);
  64
  65     virtual
  66     ~logic_error() throw();
  67
  68     /** Returns a C-style character string describing the general cause of
  69      *  the current error (the same string passed to the ctor).  */
  70     virtual const char*
  71     what() const throw();
  72   };
  73
  74   /** Thrown by the library, or by you, to report domain errors (domain in
  75    *  the mathematical sense).  */
  76   class domain_error : public logic_error
  77   {
  78   public:
  79     explicit domain_error(const string& __arg);
  80   };
  81
  82   /** Thrown to report invalid arguments to functions.  */
  83   class invalid_argument : public logic_error
  84   {
  85   public:
  86     explicit invalid_argument(const string& __arg);
  87   };
  88
  89   /** Thrown when an object is constructed that would exceed its maximum
  90    *  permitted size (e.g., a basic_string instance).  */
  91   class length_error : public logic_error
  92   {
  93   public:
  94     explicit length_error(const string& __arg);
  95   };
  96
  97   /** This represents an argument whose value is not within the expected
  98    *  range (e.g., boundary checks in basic_string).  */
  99   class out_of_range : public logic_error
 100   {
 101   public:
 102     explicit out_of_range(const string& __arg);
 103   };
 104
 105   /** Runtime errors represent problems outside the scope of a program;
 106    *  they cannot be easily predicted and can generally only be caught as
 107    *  the program executes.
 108    *  @brief One of two subclasses of exception.
 109    */
 110   class runtime_error : public exception
 111   {
 112     string _M_msg;
 113
 114   public:
 115     /** Takes a character string describing the error.  */
 116     explicit
 117     runtime_error(const string& __arg);
 118
 119     virtual
 120     ~runtime_error() throw();
 121
 122     /** Returns a C-style character string describing the general cause of
 123      *  the current error (the same string passed to the ctor).  */
 124     virtual const char*
 125     what() const throw();
 126   };
 127
 128   /** Thrown to indicate range errors in internal computations.  */
 129   class range_error : public runtime_error
 130   {
 131   public:
 132     explicit range_error(const string& __arg);
 133   };
 134
 135   /** Thrown to indicate arithmetic overflow.  */
 136   class overflow_error : public runtime_error
 137   {
 138   public:
 139     explicit overflow_error(const string& __arg);
 140   };
 141
 142   /** Thrown to indicate arithmetic underflow.  */
 143   class underflow_error : public runtime_error
 144   {
 145   public:
 146     explicit underflow_error(const string& __arg);
 147   };
 148
 149   // @} group exceptions
 150
 151 _GLIBCXX_END_NAMESPACE_VERSION
 152 } // namespace
 153
 154 #endif /* _GLIBCXX_STDEXCEPT */