LTP GCOV extension - code coverage report
Current view: | directory - usr/include/c++/4.3 - exception
Test: | lcov.info
Date: | 2008-08-14 |  | Instrumented lines: | 2
Code covered: | 50.0 % |  | Executed lines: | 1

           1                 : // Exception Handling support header for -*- C++ -*-
           2                 :
           3                 : // Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
           4                 : // 2004, 2005, 2006, 2007
           5                 : // Free Software Foundation
           6                 : //
           7                 : // This file is part of GCC.
           8                 : //
           9                 : // GCC is free software; you can redistribute it and/or modify
          10                 : // it under the terms of the GNU General Public License as published by
          11                 : // the Free Software Foundation; either version 2, or (at your option)
          12                 : // any later version.
          13                 : //
          14                 : // GCC is distributed in the hope that it will be useful,
          15                 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
          16                 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
          17                 : // GNU General Public License for more details.
          18                 : //
          19                 : // You should have received a copy of the GNU General Public License
          20                 : // along with GCC; see the file COPYING.  If not, write to
          21                 : // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
          22                 : // Boston, MA 02110-1301, USA.
          23                 :
          24                 : // As a special exception, you may use this file as part of a free software
          25                 : // library without restriction.  Specifically, if other files instantiate
          26                 : // templates or use macros or inline functions from this file, or you compile
          27                 : // this file and link it with other files to produce an executable, this
          28                 : // file does not by itself cause the resulting executable to be covered by
          29                 : // the GNU General Public License.  This exception does not however
          30                 : // invalidate any other reasons why the executable file might be covered by
          31                 : // the GNU General Public License.
          32                 :
          33                 : /** @file exception
          34                 :  *  This is a Standard C++ Library header.
          35                 :  */
          36                 :
          37                 : #ifndef __EXCEPTION__
          38                 : #define __EXCEPTION__
          39                 :
          40                 : #pragma GCC visibility push(default)
          41                 :
          42                 : #include <bits/c++config.h>
          43                 :
          44                 : extern "C++" {
          45                 :
          46                 : namespace std
          47                 : {
          48                 :   /**
          49                 :    *  @brief Base class for all library exceptions.
          50                 :    *
          51                 :    *  This is the base class for all exceptions thrown by the standard
          52                 :    *  library, and by certain language expressions.  You are free to derive
          53                 :    *  your own %exception classes, or use a different hierarchy, or to
          54                 :    *  throw non-class data (e.g., fundamental types).
          55                 :    */
          56                 :   class exception
          57               0 :   {
          58                 :   public:
          59               6 :     exception() throw() { }
          60                 :     virtual ~exception() throw();
          61                 :
          62                 :     /** Returns a C-style character string describing the general cause
          63                 :      *  of the current error.  */
          64                 :     virtual const char* what() const throw();
          65                 :   };
          66                 :
          67                 :   /** If an %exception is thrown which is not listed in a function's
          68                 :    *  %exception specification, one of these may be thrown.  */
          69                 :   class bad_exception : public exception
          70                 :   {
          71                 :   public:
          72                 :     bad_exception() throw() { }
          73                 :
          74                 :     // This declaration is not useless:
          75                 :     // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
          76                 :     virtual ~bad_exception() throw();
          77                 :
          78                 :     // See comment in eh_exception.cc.
          79                 :     virtual const char* what() const throw();
          80                 :   };
          81                 :
          82                 :   /// If you write a replacement %terminate handler, it must be of this type.
          83                 :   typedef void (*terminate_handler) ();
          84                 :
          85                 :   /// If you write a replacement %unexpected handler, it must be of this type.
          86                 :   typedef void (*unexpected_handler) ();
          87                 :
          88                 :   /// Takes a new handler function as an argument, returns the old function.
          89                 :   terminate_handler set_terminate(terminate_handler) throw();
          90                 :
          91                 :   /** The runtime will call this function if %exception handling must be
          92                 :    *  abandoned for any reason.  It can also be called by the user.  */
          93                 :   void terminate() __attribute__ ((__noreturn__));
          94                 :
          95                 :   /// Takes a new handler function as an argument, returns the old function.
          96                 :   unexpected_handler set_unexpected(unexpected_handler) throw();
          97                 :
          98                 :   /** The runtime will call this function if an %exception is thrown which
          99                 :    *  violates the function's %exception specification.  */
         100                 :   void unexpected() __attribute__ ((__noreturn__));
         101                 :
         102                 :   /** [18.6.4]/1:  "Returns true after completing evaluation of a
         103                 :    *  throw-expression until either completing initialization of the
         104                 :    *  exception-declaration in the matching handler or entering @c unexpected()
         105                 :    *  due to the throw; or after entering @c terminate() for any reason
         106                 :    *  other than an explicit call to @c terminate().  [Note: This includes
         107                 :    *  stack unwinding [15.2].  end note]"
         108                 :    *
         109                 :    *  2:  "When @c uncaught_exception() is true, throwing an %exception can
         110                 :    *  result in a call of @c terminate() (15.5.1)."
         111                 :    */
         112                 :   bool uncaught_exception() throw();
         113                 : } // namespace std
         114                 :
         115                 : _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
         116                 :
         117                 :   /** A replacement for the standard terminate_handler which prints more
         118                 :       information about the terminating exception (if any) on stderr.  Call
         119                 :       @code
         120                 :         std::set_terminate (__gnu_cxx::__verbose_terminate_handler)
         121                 :       @endcode
         122                 :       to use.  For more info, see
         123                 :       http://gcc.gnu.org/onlinedocs/libstdc++/19_diagnostics/howto.html#4
         124                 :
         125                 :       In 3.4 and later, this is on by default.
         126                 :   */
         127                 :   void __verbose_terminate_handler ();
         128                 :
         129                 : _GLIBCXX_END_NAMESPACE
         130                 :
         131                 : } // extern "C++"
         132                 :
         133                 : #pragma GCC visibility pop
         134                 :
         135                 : #endif

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