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authorYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
committerYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
commitbe8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch)
tree726e2468c0c07add773c0dbd86ab6386844259ae /gcc/cp/new1.cc
initial commit
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diff --git a/gcc/cp/new1.cc b/gcc/cp/new1.cc
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+// Support routines for the -*- C++ -*- dynamic memory management.
+// Copyright (C) 1997, 1998, 1999 Free Software Foundation
+
+// This file is part of GNU CC.
+
+// GNU CC 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 2, or (at your option)
+// any later version.
+
+// GNU CC 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.
+
+// You should have received a copy of the GNU General Public License
+// along with GNU CC; see the file COPYING. If not, write to
+// the Free Software Foundation, 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.
+
+// As a special exception, if you link this library with other files,
+// some of which are compiled with GCC, to produce an executable,
+// this library does not by itself cause the resulting executable
+// to be covered by the GNU General Public License.
+// This exception does not however invalidate any other reasons why
+// the executable file might be covered by the GNU General Public License.
+
+#include "new"
+using std::new_handler;
+using std::bad_alloc;
+
+extern "C" void *malloc (size_t);
+extern new_handler __new_handler;
+
+#define WEAK(x) \
+ x __attribute__ ((weak)); \
+ x
+
+#ifdef L_op_newnt
+WEAK (void * operator new (size_t sz, const std::nothrow_t&) __GCC_THROW(__GCC_nothing))
+{
+ void *p;
+
+ /* malloc (0) is unpredictable; avoid it. */
+ if (sz == 0)
+ sz = 1;
+ p = (void *) malloc (sz);
+ while (p == 0)
+ {
+ new_handler handler = __new_handler;
+ if (! handler)
+ return 0;
+/* CYGNUS LOCAL embedded C++ */
+#ifdef __EMBEDDED_CXX__
+ handler ();
+#else
+ try
+ {
+ handler ();
+ }
+ catch (bad_alloc &)
+ {
+ return 0;
+ }
+#endif
+/* END CYGNUS LOCAL */
+
+ p = (void *) malloc (sz);
+ }
+
+ return p;
+}
+#endif
+
+#ifdef L_op_new
+WEAK (void * operator new (size_t sz) __GCC_THROW (std::bad_alloc))
+{
+ void *p;
+
+ /* malloc (0) is unpredictable; avoid it. */
+ if (sz == 0)
+ sz = 1;
+ p = (void *) malloc (sz);
+ while (p == 0)
+ {
+ new_handler handler = __new_handler;
+/* CYGNUS LOCAL embedded C++ */
+#ifndef __EMBEDDED_CXX__
+ if (! handler)
+ throw bad_alloc ();
+#endif
+/* END CYGNUS LOCAL */
+ handler ();
+ p = (void *) malloc (sz);
+ }
+
+ return p;
+}
+#endif