libstdc++-v3/include/std/stdexcept

   1 // Standard exception classes  -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 // Boston, MA 02110-1301, USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 /** @file stdexcept
  31  *  This is a Standard C++ Library header.
  32  */
  33
  34 //
  35 // ISO C++ 19.1  Exception classes
  36 //
  37
  38 #ifndef _GLIBCXX_STDEXCEPT
  39 #define _GLIBCXX_STDEXCEPT 1
  40
  41 #pragma GCC system_header
  42
  43 #include <exception>
  44 #include <string>
  45
  46 _GLIBCXX_BEGIN_NAMESPACE(std)
  47
  48   /** Logic errors represent problems in the internal logic of a program;
  49    *  in theory, these are preventable, and even detectable before the
  50    *  program runs (e.g., violations of class invariants).
  51    *  @brief One of two subclasses of exception.
  52    */
  53   class logic_error : public exception
  54   {
  55     string _M_msg;
  56
  57   public:
  58     /** Takes a character string describing the error.  */
  59     explicit
  60     logic_error(const string&  __arg);
  61
  62     virtual
  63     ~logic_error() throw();
  64
  65     /** Returns a C-style character string describing the general cause of
  66      *  the current error (the same string passed to the ctor).  */
  67     virtual const char*
  68     what() const throw();
  69   };
  70
  71   /** Thrown by the library, or by you, to report domain errors (domain in
  72    *  the mathmatical sense).  */
  73   class domain_error : public logic_error
  74   {
  75   public:
  76     explicit domain_error(const string&  __arg);
  77   };
  78
  79   /** Thrown to report invalid arguments to functions.  */
  80   class invalid_argument : public logic_error
  81   {
  82   public:
  83     explicit invalid_argument(const string&  __arg);
  84   };
  85
  86   /** Thrown when an object is constructed that would exceed its maximum
  87    *  permitted size (e.g., a basic_string instance).  */
  88   class length_error : public logic_error
  89   {
  90   public:
  91     explicit length_error(const string&  __arg);
  92   };
  93
  94   /** This represents an argument whose value is not within the expected
  95    *  range (e.g., boundary checks in basic_string).  */
  96   class out_of_range : public logic_error
  97   {
  98   public:
  99     explicit out_of_range(const string&  __arg);
 100   };
 101
 102   /** Runtime errors represent problems outside the scope of a program;
 103    *  they cannot be easily predicted and can generally only be caught as
 104    *  the program executes.
 105    *  @brief One of two subclasses of exception.
 106    */
 107   class runtime_error : public exception
 108   {
 109     string _M_msg;
 110
 111   public:
 112     /** Takes a character string describing the error.  */
 113     explicit
 114     runtime_error(const string&  __arg);
 115
 116     virtual
 117     ~runtime_error() throw();
 118
 119     /** Returns a C-style character string describing the general cause of
 120      *  the current error (the same string passed to the ctor).  */
 121     virtual const char*
 122     what() const throw();
 123   };
 124
 125   /** Thrown to indicate range errors in internal computations.  */
 126   class range_error : public runtime_error
 127   {
 128   public:
 129     explicit range_error(const string&  __arg);
 130   };
 131
 132   /** Thrown to indicate arithmetic overflow.  */
 133   class overflow_error : public runtime_error
 134   {
 135   public:
 136     explicit overflow_error(const string&  __arg);
 137   };
 138
 139   /** Thrown to indicate arithmetic underflow.  */
 140   class underflow_error : public runtime_error
 141   {
 142   public:
 143     explicit underflow_error(const string&  __arg);
 144   };
 145
 146 _GLIBCXX_END_NAMESPACE
 147
 148 #endif /* _GLIBCXX_STDEXCEPT */