/home/ntakagi/work/STLport-5.1.5/stlport/stl/_alloc_old.h Go to the documentation of this file. template<class _Tp, class _Alloc> class __simple_alloc { typedef _Alloc __alloc_type; public: typedef typename _Alloc::value_type __alloc_value_type; typedef _Tp value_type; static size_t _STLP_CALL __chunk(size_t __n) { return (sizeof(__alloc_value_type)==sizeof(value_type)) ? __n : ((__n*sizeof(value_type)+sizeof(__alloc_value_type)-1)/sizeof(__alloc_value_type)); } static _Tp* _STLP_CALL allocate(size_t __n) { return 0 == __n ? 0 : (_Tp*) __alloc_type::allocate(__chunk(__n)); } static void _STLP_CALL deallocate(_Tp * __p, size_t __n) { __alloc_type::deallocate((__alloc_value_type*)__p, __chunk(__n)); } }; // Allocator adaptor to turn an SGI-style allocator (e.g. alloc, malloc_alloc) // into a standard-conforming allocator. Note that this adaptor does // *not* assume that all objects of the underlying alloc class are // identical, nor does it assume that all of the underlying alloc's // member functions are static member functions. Note, also, that // __allocator<_Tp, alloc> is essentially the same thing as allocator<_Tp>. template <class _Tp, class _Alloc> struct __allocator : public _Alloc { typedef _Alloc __underlying_alloc; typedef size_t size_type; typedef ptrdiff_t difference_type; typedef _Tp* pointer; typedef const _Tp* const_pointer; typedef _Tp& reference; typedef const _Tp& const_reference; typedef _Tp value_type; # if defined (_STLP_MEMBER_TEMPLATE_CLASSES) template <class _Tp1> struct rebind { typedef __allocator<_Tp1, _Alloc> other; }; # endif __allocator() _STLP_NOTHROW {} __allocator(const _Alloc& ) _STLP_NOTHROW {} __allocator(const __allocator<_Tp, _Alloc>& __a) _STLP_NOTHROW : _Alloc(__a) {} # if defined (_STLP_MEMBER_TEMPLATES) && defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER) template <class _Tp1> __allocator(const __allocator<_Tp1, _Alloc>& __a) _STLP_NOTHROW : _Alloc(__a) {} # endif # ifdef _STLP_TRIVIAL_DESTRUCTOR_BUG ~__allocator() _STLP_NOTHROW {} # endif pointer address(reference __x) const { return &__x; } # if !defined (__WATCOM_CPLUSPLUS__) const_pointer address(const_reference __x) const { return &__x; } # endif // __n is permitted to be 0. _Tp* allocate(size_type __n, const void* = 0) { if (__n > max_size()) __THROW_BAD_ALLOC; return __n != 0 ? __STATIC_CAST(_Tp*,__underlying_alloc::allocate(__n * sizeof(_Tp))) : 0; } // __p is not permitted to be a null pointer. void deallocate(pointer __p, size_type __n) { if (__p) __underlying_alloc::deallocate(__p, __n * sizeof(_Tp)); } size_type max_size() const _STLP_NOTHROW { return size_t(-1) / sizeof(_Tp); } void construct(pointer __p, const_reference __val) { _STLP_STD::_Copy_Construct(__p, __val); } void destroy(pointer __p) { _STLP_STD::_Destroy(__p); } const __underlying_alloc& __get_underlying_alloc() const { return *this; } }; #ifdef _STLP_CLASS_PARTIAL_SPECIALIZATION template <class _Alloc> class __allocator<void, _Alloc> { typedef size_t size_type; typedef ptrdiff_t difference_type; typedef void* pointer; typedef const void* const_pointer; typedef void value_type; #ifdef _STLP_MEMBER_TEMPLATE_CLASSES template <class _Tp1> struct rebind { typedef __allocator<_Tp1, _Alloc> other; }; #endif }; #endif template <class _Tp, class _Alloc> inline bool _STLP_CALL operator==(const __allocator<_Tp, _Alloc>& __a1, const __allocator<_Tp, _Alloc>& __a2) { return __a1.__get_underlying_alloc() == __a2.__get_underlying_alloc(); } #ifdef _STLP_USE_SEPARATE_RELOPS_NAMESPACE template <class _Tp, class _Alloc> inline bool _STLP_CALL operator!=(const __allocator<_Tp, _Alloc>& __a1, const __allocator<_Tp, _Alloc>& __a2) { return __a1.__get_underlying_alloc() != __a2.__get_underlying_alloc(); } #endif /* _STLP_FUNCTION_TMPL_PARTIAL_ORDER */ // Comparison operators for all of the predifined SGI-style allocators. // This ensures that __allocator<malloc_alloc> (for example) will // work correctly. #ifndef _STLP_NON_TYPE_TMPL_PARAM_BUG inline bool _STLP_CALL operator==(const __malloc_alloc&, const __malloc_alloc&) { return true; } # ifdef _STLP_FUNCTION_TMPL_PARTIAL_ORDER inline bool _STLP_CALL operator!=(const __malloc_alloc&, const __malloc_alloc&) { return false; } # endif inline bool _STLP_CALL operator==(const __new_alloc&, const __new_alloc&) { return true; } # ifdef _STLP_USE_SEPARATE_RELOPS_NAMESPACE inline bool _STLP_CALL operator!=(const __new_alloc&, const __new_alloc&) { return false; } # endif # if !defined (_STLP_USE_NO_IOSTREAMS) inline bool _STLP_CALL operator==(const __node_alloc&, const __node_alloc&) { return true; } # if defined( _STLP_FUNCTION_TMPL_PARTIAL_ORDER ) inline bool _STLP_CALL operator!=(const __node_alloc&, const __node_alloc&) { return false; } # endif # endif #endif /* _STLP_NON_TYPE_TMPL_PARAM_BUG */ template <class _Alloc> inline bool _STLP_CALL operator==(const __debug_alloc<_Alloc>&, const __debug_alloc<_Alloc>&) { return true; } # ifdef _STLP_USE_SEPARATE_RELOPS_NAMESPACE template <class _Alloc> inline bool _STLP_CALL operator!=(const __debug_alloc<_Alloc>&, const __debug_alloc<_Alloc>&) { return false; } # endif #if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) // Versions for the predefined SGI-style allocators. template <class _Tp> struct _Alloc_traits<_Tp, __malloc_alloc> { typedef __allocator<_Tp, __malloc_alloc> allocator_type; }; # if !defined (_STLP_USE_NO_IOSTREAMS) template <class _Tp> struct _Alloc_traits<_Tp, __node_alloc> { typedef __allocator<_Tp, __node_alloc> allocator_type; }; # endif template <class _Tp, class _Alloc> struct _Alloc_traits<_Tp, __debug_alloc<_Alloc> > { typedef __allocator<_Tp, __debug_alloc<_Alloc> > allocator_type; }; // Versions for the __allocator adaptor used with the predefined // SGI-style allocators. template <class _Tp, class _Tp1, class _Alloc> struct _Alloc_traits<_Tp, __allocator<_Tp1, _Alloc > > { typedef __allocator<_Tp, _Alloc > allocator_type; }; #endif #if defined (_STLP_DONT_SUPPORT_REBIND_MEMBER_TEMPLATE) // Versions for the predefined SGI-style allocators. # if defined (_STLP_NON_TYPE_TMPL_PARAM_BUG) typedef __malloc_alloc __malloc_alloc_dfl; template <class _Tp> inline __allocator<_Tp, __malloc_alloc_dfl >& _STLP_CALL __stl_alloc_rebind(__malloc_alloc_dfl& __a, const _Tp*) { return (__allocator<_Tp, __malloc_alloc_dfl >&)__a; } # if !defined (_STLP_USE_NO_IOSTREAMS) template <class _Tp> inline __allocator<_Tp, __node_alloc>& _STLP_CALL __stl_alloc_rebind(__node_alloc& __a, const _Tp*) { return (__allocator<_Tp, __node_alloc>&)__a; } # endif template <class _Tp> inline __allocator<_Tp, __malloc_alloc_dfl > _STLP_CALL __stl_alloc_create(const __malloc_alloc_dfl&, const _Tp*) { return __allocator<_Tp, __malloc_alloc_dfl > (); } # if !defined (_STLP_USE_NO_IOSTREAMS) template <class _Tp> inline __allocator<_Tp, __node_alloc> _STLP_CALL __stl_alloc_create(const __node_alloc&, const _Tp*) { return __allocator<_Tp, __node_alloc>(); } # endif # else template <class _Tp> inline __allocator<_Tp, __malloc_alloc>& _STLP_CALL __stl_alloc_rebind(__malloc_alloc& __a, const _Tp*) { return (__allocator<_Tp, __malloc_alloc>&)__a; } # if !defined (_STLP_USE_NO_IOSTREAMS) template <class _Tp> inline __allocator<_Tp, __node_alloc>& _STLP_CALL __stl_alloc_rebind(__node_alloc& __a, const _Tp*) { return (__allocator<_Tp, __node_alloc>&)__a; } # endif template <class _Tp> inline __allocator<_Tp, __malloc_alloc> _STLP_CALL __stl_alloc_create(const __malloc_alloc&, const _Tp*) { return __allocator<_Tp, __malloc_alloc>(); } # if !defined (_STLP_USE_NO_IOSTREAMS) template <class _Tp> inline __allocator<_Tp, __node_alloc> _STLP_CALL __stl_alloc_create(const __node_alloc&, const _Tp*) { return __allocator<_Tp, __node_alloc>(); } # endif # endif template <class _Tp, class _Alloc> inline __allocator<_Tp, __debug_alloc<_Alloc> > _STLP_CALL __stl_alloc_create(const __debug_alloc<_Alloc>&, const _Tp*) { return __allocator<_Tp, __debug_alloc<_Alloc> >(); } template <class _Tp, class _Alloc> inline __allocator<_Tp, __debug_alloc<_Alloc> >& _STLP_CALL __stl_alloc_rebind(__debug_alloc<_Alloc>& __a, const _Tp*) { return (__allocator<_Tp, __debug_alloc<_Alloc> >&)__a; } template <class _Tp> inline __allocator<_Tp, __new_alloc > _STLP_CALL __stl_alloc_create(const __new_alloc&, const _Tp*) { return __allocator<_Tp, __new_alloc >(); } template <class _Tp> inline __allocator<_Tp, __new_alloc >& _STLP_CALL __stl_alloc_rebind(__new_alloc& __a, const _Tp*) { return (__allocator<_Tp, __new_alloc >&)__a; } template <class _Tp1, class _Alloc, class _Tp2> inline __allocator<_Tp2, _Alloc>& _STLP_CALL __stl_alloc_rebind(__allocator<_Tp1, _Alloc>& __a, const _Tp2*) { return (__allocator<_Tp2, _Alloc>&)__a; } template <class _Tp1, class _Alloc, class _Tp2> inline __allocator<_Tp2, _Alloc> _STLP_CALL __stl_alloc_create(const __allocator<_Tp1, _Alloc>&, const _Tp2*) { return __allocator<_Tp2, _Alloc>(); } #endif

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