LCOV - code coverage report
Current view: top level - usr/include/c++/4.7.2 - new (source / functions) Hit Total Coverage
Test: stap.info Lines: 2 3 66.7 %
Date: 2013-03-08 Functions: 1 2 50.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // The -*- C++ -*- dynamic memory management header.
       2                 :            : 
       3                 :            : // Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
       4                 :            : // 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011
       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 3, 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                 :            : // Under Section 7 of GPL version 3, you are granted additional
      20                 :            : // permissions described in the GCC Runtime Library Exception, version
      21                 :            : // 3.1, as published by the Free Software Foundation.
      22                 :            : 
      23                 :            : // You should have received a copy of the GNU General Public License and
      24                 :            : // a copy of the GCC Runtime Library Exception along with this program;
      25                 :            : // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      26                 :            : // <http://www.gnu.org/licenses/>.
      27                 :            : 
      28                 :            : /** @file new
      29                 :            :  *  This is a Standard C++ Library header.
      30                 :            :  *
      31                 :            :  *  The header @c new defines several functions to manage dynamic memory and
      32                 :            :  *  handling memory allocation errors; see
      33                 :            :  *  http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.
      34                 :            :  */
      35                 :            : 
      36                 :            : #ifndef _NEW
      37                 :            : #define _NEW
      38                 :            : 
      39                 :            : #pragma GCC system_header
      40                 :            : 
      41                 :            : #include <bits/c++config.h>
      42                 :            : #include <exception>
      43                 :            : 
      44                 :            : #pragma GCC visibility push(default)
      45                 :            : 
      46                 :            : extern "C++" {
      47                 :            : 
      48                 :            : namespace std 
      49                 :            : {
      50                 :            :   /**
      51                 :            :    *  @brief  Exception possibly thrown by @c new.
      52                 :            :    *  @ingroup exceptions
      53                 :            :    *
      54                 :            :    *  @c bad_alloc (or classes derived from it) is used to report allocation
      55                 :            :    *  errors from the throwing forms of @c new.  */
      56                 :            :   class bad_alloc : public exception 
      57                 :            :   {
      58                 :            :   public:
      59                 :            :     bad_alloc() throw() { }
      60                 :            : 
      61                 :            :     // This declaration is not useless:
      62                 :            :     // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
      63                 :            :     virtual ~bad_alloc() throw();
      64                 :            : 
      65                 :            :     // See comment in eh_exception.cc.
      66                 :            :     virtual const char* what() const throw();
      67                 :            :   };
      68                 :            : 
      69                 :            :   struct nothrow_t { };
      70                 :            : 
      71                 :            :   extern const nothrow_t nothrow;
      72                 :            : 
      73                 :            :   /** If you write your own error handler to be called by @c new, it must
      74                 :            :    *  be of this type.  */
      75                 :            :   typedef void (*new_handler)();
      76                 :            : 
      77                 :            :   /// Takes a replacement handler as the argument, returns the
      78                 :            :   /// previous handler.
      79                 :            :   new_handler set_new_handler(new_handler) throw();
      80                 :            : } // namespace std
      81                 :            : 
      82                 :            : //@{
      83                 :            : /** These are replaceable signatures:
      84                 :            :  *  - normal single new and delete (no arguments, throw @c bad_alloc on error)
      85                 :            :  *  - normal array new and delete (same)
      86                 :            :  *  - @c nothrow single new and delete (take a @c nothrow argument, return
      87                 :            :  *    @c NULL on error)
      88                 :            :  *  - @c nothrow array new and delete (same)
      89                 :            :  *
      90                 :            :  *  Placement new and delete signatures (take a memory address argument,
      91                 :            :  *  does nothing) may not be replaced by a user's program.
      92                 :            : */
      93                 :            : void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      94                 :            :   __attribute__((__externally_visible__));
      95                 :            : void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      96                 :            :   __attribute__((__externally_visible__));
      97                 :            : void operator delete(void*) _GLIBCXX_USE_NOEXCEPT
      98                 :            :   __attribute__((__externally_visible__));
      99                 :            : void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT
     100                 :            :   __attribute__((__externally_visible__));
     101                 :            : void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
     102                 :            :   __attribute__((__externally_visible__));
     103                 :            : void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
     104                 :            :   __attribute__((__externally_visible__));
     105                 :            : void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
     106                 :            :   __attribute__((__externally_visible__));
     107                 :            : void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
     108                 :            :   __attribute__((__externally_visible__));
     109                 :            : 
     110                 :            : // Default placement versions of operator new.
     111                 :  613766625 : inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
     112                 :  613766625 : { return __p; }
     113                 :            : inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
     114                 :            : { return __p; }
     115                 :            : 
     116                 :            : // Default placement versions of operator delete.
     117                 :          0 : inline void operator delete  (void*, void*) _GLIBCXX_USE_NOEXCEPT { }
     118                 :            : inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { }
     119                 :            : //@}
     120                 :            : } // extern "C++"
     121                 :            : 
     122                 :            : #pragma GCC visibility pop
     123                 :            : 
     124                 :            : #endif

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