/* Obstack wrapper for GDB.
- Copyright (C) 2002-2016 Free Software Foundation, Inc.
+ Copyright (C) 2002-2018 Free Software Foundation, Inc.
This file is part of GDB.
extern char *obstack_strdup (struct obstack *obstackp, const char *string);
+/* An obstack that frees itself on scope exit. */
+struct auto_obstack : obstack
+{
+ auto_obstack ()
+ { obstack_init (this); }
+
+ ~auto_obstack ()
+ { obstack_free (this, NULL); }
+
+ /* Free all memory in the obstack but leave it valid for further
+ allocation. */
+ void clear ()
+ { obstack_free (this, obstack_base (this)); }
+};
+
+/* Objects are allocated on obstack instead of heap. */
+
+struct allocate_on_obstack
+{
+ allocate_on_obstack () = default;
+
+ void* operator new (size_t size, struct obstack *obstack)
+ {
+ return obstack_alloc (obstack, size);
+ }
+
+ void* operator new[] (size_t size, struct obstack *obstack)
+ {
+ return obstack_alloc (obstack, size);
+ }
+
+ void operator delete (void *memory) {}
+ void operator delete[] (void *memory) {}
+};
+
#endif