mirror of
https://github.com/panda3d/panda3d.git
synced 2025-10-04 02:42:49 -04:00
126 lines
3.8 KiB
C++
126 lines
3.8 KiB
C++
// Filename: dallocator.h
|
|
// Created by: drose (05Jun01)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
|
|
//
|
|
// All use of this software is subject to the terms of the Panda 3d
|
|
// Software license. You should have received a copy of this license
|
|
// along with this source code; you will also find a current copy of
|
|
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
|
|
//
|
|
// To contact the maintainers of this program write to
|
|
// panda3d-general@lists.sourceforge.net .
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef DALLOCATOR_H
|
|
#define DALLOCATOR_H
|
|
#include <memory>
|
|
|
|
#include "dtoolbase.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : dallocator
|
|
// Description : This is similar to pallocator, but always uses the
|
|
// default new and delete handlers defined in
|
|
// dtoolbase_cc.h; it never calls the hooks assigned by
|
|
// redefining global_operator_new, etc.
|
|
//
|
|
// This is needed in those rare cases when we need to
|
|
// allocate memory for STL without going through the
|
|
// callback hooks, for instance to implement STL tables
|
|
// within the MemoryUsage class itself.
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#if defined(NO_STYLE_ALLOCATOR)
|
|
// If we're not trying to make custom allocators (either we don't know
|
|
// what kind of syntax this STL library wants, or we're compiling with
|
|
// OPTIMIZE 4), then simply use the standard allocator.
|
|
#define dallocator allocator
|
|
|
|
#elif defined(OLD_STYLE_ALLOCATOR)
|
|
// Early versions of gcc wanted to use their own kind of allocator,
|
|
// somewhat different from the STL standard. Irix uses this one too.
|
|
// It might be inherited from an early draft of the STL standard.
|
|
|
|
template<class Type>
|
|
class dallocator : public alloc {
|
|
public:
|
|
INLINE static Type *allocate(size_t n);
|
|
INLINE static void deallocate(void *p, size_t n);
|
|
};
|
|
|
|
#elif defined(GNU_STYLE_ALLOCATOR)
|
|
// Later versions of gcc want to use a still different,
|
|
// not-quite-standard definition. Sheesh.
|
|
|
|
template<class Type>
|
|
class dallocator : public allocator<Type> {
|
|
public:
|
|
INLINE dallocator();
|
|
template<class _Tp1>
|
|
INLINE dallocator(const dallocator<_Tp1> &other);
|
|
|
|
INLINE Type *allocate(size_t n);
|
|
INLINE void deallocate(void *p, size_t n);
|
|
|
|
template <class _Tp1> struct rebind {
|
|
typedef dallocator<_Tp1> other;
|
|
};
|
|
};
|
|
|
|
#elif defined(MODERN_STYLE_ALLOCATOR)
|
|
|
|
// The final specification?
|
|
template<class Type>
|
|
class dallocator : public allocator<Type> {
|
|
public:
|
|
// There seems to be a bug in VC++ 2003 that requires these typedefs
|
|
// to be made explicitly.
|
|
typedef TYPENAME allocator<Type>::pointer pointer;
|
|
typedef TYPENAME allocator<Type>::reference reference;
|
|
typedef TYPENAME allocator<Type>::const_pointer const_pointer;
|
|
typedef TYPENAME allocator<Type>::const_reference const_reference;
|
|
typedef TYPENAME allocator<Type>::size_type size_type;
|
|
|
|
INLINE dallocator() throw();
|
|
|
|
// template member functions in VC++ can only be defined in-class.
|
|
template<class U>
|
|
INLINE dallocator(const dallocator<U> ©) throw() { }
|
|
|
|
INLINE pointer allocate(size_type n, allocator<void>::const_pointer hint = 0);
|
|
INLINE void deallocate(pointer p, size_type n);
|
|
|
|
/*
|
|
#ifdef __GNUC__
|
|
template<class Subtype>
|
|
INLINE void destroy(Subtype *p) {
|
|
p->~Subtype();
|
|
}
|
|
template<class Subtype>
|
|
INLINE void construct(Subtype *p, const Subtype &value) {
|
|
::new(p) Subtype(value);
|
|
}
|
|
#endif // __GNUC__
|
|
*/
|
|
|
|
template<class U> struct rebind {
|
|
typedef dallocator<U> other;
|
|
};
|
|
};
|
|
|
|
#else
|
|
#error Unrecognized allocator symbol defined!
|
|
#endif // *_STYLE_ALLOCATOR
|
|
|
|
#ifndef NO_STYLE_ALLOCATOR
|
|
#include "dallocator.T"
|
|
#endif
|
|
|
|
#endif
|
|
|