/usr/include/BoxLib/Arena.H is in libbox-dev 2.5-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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** (c) 1996-2000 The Regents of the University of California (through
** E.O. Lawrence Berkeley National Laboratory), subject to approval by
** the U.S. Department of Energy. Your use of this software is under
** license -- the license agreement is attached and included in the
** directory as license.txt or you may contact Berkeley Lab's Technology
** Transfer Department at TTD@lbl.gov. NOTICE OF U.S. GOVERNMENT RIGHTS.
** The Software was developed under funding from the U.S. Government
** which consequently retains certain rights as follows: the
** U.S. Government has been granted for itself and others acting on its
** behalf a paid-up, nonexclusive, irrevocable, worldwide license in the
** Software to reproduce, prepare derivative works, and perform publicly
** and display publicly. Beginning five (5) years after the date
** permission to assert copyright is obtained from the U.S. Department of
** Energy, and subject to any subsequent five (5) year renewals, the
** U.S. Government is granted for itself and others acting on its behalf
** a paid-up, nonexclusive, irrevocable, worldwide license in the
** Software to reproduce, prepare derivative works, distribute copies to
** the public, perform publicly and display publicly, and to permit
** others to do so.
*/
#ifndef BL_ARENA_H
#define BL_ARENA_H
//
// $Id: Arena.H,v 1.14 2001/10/23 17:01:02 lijewski Exp $
//
#include <cstddef>
class Arena;
namespace BoxLib
{
Arena* The_Arena ();
Arena* ResetArena (Arena*);
}
//
//@Man:
//@Memo: A Virtual Base Class for Dynamic Memory Management
/*@Doc:
This is a virtual base class for objects that manage their own dynamic
memory allocation. Since it is a virtual base class, you have to derive
something from it to use it.
*/
class Arena
{
public:
virtual ~Arena ();
/*@ManDoc: Allocate a dynamic memory arena of size sz.
A pointer to this memory should be returned.
*/
virtual void* alloc (size_t sz) = 0;
/*@ManDoc: A pure virtual function for deleting the arena pointed
to by pt.
*/
virtual void free (void* pt) = 0;
/*@ManDoc: Given a minimum required arena size of sz bytes, this returns
the next largest arena size that will hold an integral number
of objects of the largest of the types void*, long,
double and function pointer.
*/
static size_t align (size_t sz);
protected:
//
// Types used by align().
//
union Word
{
void* p;
double d;
long l;
void (*f) ();
};
};
#endif /*BL_ARENA_H*/
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