stl_cons.h
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上传日期:2022-05-14
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文件大小:4k
源码类别:
STL
开发平台:
Visual C++
- /*
- *
- * Copyright (c) 1994
- * Hewlett-Packard Company
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Hewlett-Packard Company makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- *
- * Copyright (c) 1996,1997
- * Silicon Graphics Computer Systems, Inc.
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- */
- /* NOTE: This is an internal header file, included by other STL headers.
- * You should not attempt to use it directly.
- */
- #ifndef __SGI_STL_INTERNAL_CONSTRUCT_H
- #define __SGI_STL_INTERNAL_CONSTRUCT_H
- #include <new.h>
- __STL_BEGIN_NAMESPACE
- // construct and destroy. These functions are not part of the C++ standard,
- // and are provided for backward compatibility with the HP STL. We also
- // provide internal names _Construct and _Destroy that can be used within
- // the library, so that standard-conforming pieces don't have to rely on
- // non-standard extensions.
- // Internal names
- template <class _T1, class _T2>
- inline void _Construct(_T1* __p, const _T2& __value) {
- new ((void*) __p) _T1(__value);
- }
- template <class _T1>
- inline void _Construct(_T1* __p) {
- new ((void*) __p) _T1();
- }
- template <class _Tp>
- inline void _Destroy(_Tp* __pointer) {
- __pointer->~_Tp();
- }
- template <class _ForwardIterator>
- void
- __destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type)
- {
- for ( ; __first != __last; ++__first)
- destroy(&*__first);
- }
- template <class _ForwardIterator>
- inline void __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type) {}
- template <class _ForwardIterator, class _Tp>
- inline void
- __destroy(_ForwardIterator __first, _ForwardIterator __last, _Tp*)
- {
- typedef typename __type_traits<_Tp>::has_trivial_destructor
- _Trivial_destructor;
- __destroy_aux(__first, __last, _Trivial_destructor());
- }
- template <class _ForwardIterator>
- inline void _Destroy(_ForwardIterator __first, _ForwardIterator __last) {
- __destroy(__first, __last, __VALUE_TYPE(__first));
- }
- inline void _Destroy(char*, char*) {}
- inline void _Destroy(int*, int*) {}
- inline void _Destroy(long*, long*) {}
- inline void _Destroy(float*, float*) {}
- inline void _Destroy(double*, double*) {}
- #ifdef __STL_HAS_WCHAR_T
- inline void _Destroy(wchar_t*, wchar_t*) {}
- #endif /* __STL_HAS_WCHAR_T */
- // --------------------------------------------------
- // Old names from the HP STL.
- template <class _T1, class _T2>
- inline void construct(_T1* __p, const _T2& __value) {
- _Construct(__p, __value);
- }
- template <class _T1>
- inline void construct(_T1* __p) {
- _Construct(__p);
- }
- template <class _Tp>
- inline void destroy(_Tp* __pointer) {
- _Destroy(__pointer);
- }
- template <class _ForwardIterator>
- inline void destroy(_ForwardIterator __first, _ForwardIterator __last) {
- _Destroy(__first, __last);
- }
- __STL_END_NAMESPACE
- #endif /* __SGI_STL_INTERNAL_CONSTRUCT_H */
- // Local Variables:
- // mode:C++
- // End: