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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/libsupc++/new
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diff --git a/libstdc++-v3/libsupc++/new b/libstdc++-v3/libsupc++/new
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+// The -*- C++ -*- dynamic memory management header.
+
+// Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+// 2003, 2004, 2005, 2006, 2007, 2009, 2010
+// Free Software Foundation
+
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file new
+ * This is a Standard C++ Library header.
+ *
+ * The header @c new defines several functions to manage dynamic memory and
+ * handling memory allocation errors; see
+ * http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.
+ */
+
+#ifndef _NEW
+#define _NEW
+
+#pragma GCC system_header
+
+#include <bits/c++config.h>
+#include <exception>
+
+#pragma GCC visibility push(default)
+
+extern "C++" {
+
+namespace std
+{
+ /**
+ * @brief Exception possibly thrown by @c new.
+ * @ingroup exceptions
+ *
+ * @c bad_alloc (or classes derived from it) is used to report allocation
+ * errors from the throwing forms of @c new. */
+ class bad_alloc : public exception
+ {
+ public:
+ bad_alloc() throw() { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_alloc() throw();
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const throw();
+ };
+
+ struct nothrow_t { };
+
+ extern const nothrow_t nothrow;
+
+ /** If you write your own error handler to be called by @c new, it must
+ * be of this type. */
+ typedef void (*new_handler)();
+
+ /// Takes a replacement handler as the argument, returns the
+ /// previous handler.
+ new_handler set_new_handler(new_handler) throw();
+} // namespace std
+
+//@{
+/** These are replaceable signatures:
+ * - normal single new and delete (no arguments, throw @c bad_alloc on error)
+ * - normal array new and delete (same)
+ * - @c nothrow single new and delete (take a @c nothrow argument, return
+ * @c NULL on error)
+ * - @c nothrow array new and delete (same)
+ *
+ * Placement new and delete signatures (take a memory address argument,
+ * does nothing) may not be replaced by a user's program.
+*/
+void* operator new(std::size_t) throw (std::bad_alloc);
+void* operator new[](std::size_t) throw (std::bad_alloc);
+void operator delete(void*) throw();
+void operator delete[](void*) throw();
+void* operator new(std::size_t, const std::nothrow_t&) throw();
+void* operator new[](std::size_t, const std::nothrow_t&) throw();
+void operator delete(void*, const std::nothrow_t&) throw();
+void operator delete[](void*, const std::nothrow_t&) throw();
+
+// Default placement versions of operator new.
+inline void* operator new(std::size_t, void* __p) throw() { return __p; }
+inline void* operator new[](std::size_t, void* __p) throw() { return __p; }
+
+// Default placement versions of operator delete.
+inline void operator delete (void*, void*) throw() { }
+inline void operator delete[](void*, void*) throw() { }
+//@}
+} // extern "C++"
+
+#pragma GCC visibility pop
+
+#endif