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authordje <dje@138bc75d-0d04-0410-961f-82ee72b054a4>1997-02-07 20:09:10 +0000
committerdje <dje@138bc75d-0d04-0410-961f-82ee72b054a4>1997-02-07 20:09:10 +0000
commit2a6b3c975cb1133e1bc549ad0f108ec2028d8a1e (patch)
tree6bc78eaf7317a4bbc9e44f1e0976cd2c8c2070e3 /gcc/cp/new1.cc
parent51465342b230469227cc6321ffda11b2f8eadbde (diff)
downloadgcc-2a6b3c975cb1133e1bc549ad0f108ec2028d8a1e.tar.gz
Initial revision
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@13620 138bc75d-0d04-0410-961f-82ee72b054a4
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+// Support routine for the -*- C++ -*- dynamic memory management.
+// Copyright (C) 1997 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"
+
+typedef void (*vfp)(void);
+extern vfp __new_handler;
+extern void __default_new_handler (void);
+
+void *operator new (size_t sz, const nothrow_t&) throw()
+{
+ void *p;
+ vfp handler = __new_handler;
+
+ /* malloc (0) is unpredictable; avoid it. */
+ if (sz == 0)
+ sz = 1;
+ p = (void *) malloc (sz);
+ while (p == 0)
+ {
+ if (! handler)
+ return 0;
+ (*handler) ();
+ p = (void *) malloc (sz);
+ }
+
+ return p;
+}