contrib/libstdc++/stl/stl_construct.h

   1 /*
   2  *
   3  * Copyright (c) 1994
   4  * Hewlett-Packard Company
   5  *
   6  * Permission to use, copy, modify, distribute and sell this software
   7  * and its documentation for any purpose is hereby granted without fee,
   8  * provided that the above copyright notice appear in all copies and
   9  * that both that copyright notice and this permission notice appear
  10  * in supporting documentation.  Hewlett-Packard Company makes no
  11  * representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  *
  15  * Copyright (c) 1996,1997
  16  * Silicon Graphics Computer Systems, Inc.
  17  *
  18  * Permission to use, copy, modify, distribute and sell this software
  19  * and its documentation for any purpose is hereby granted without fee,
  20  * provided that the above copyright notice appear in all copies and
  21  * that both that copyright notice and this permission notice appear
  22  * in supporting documentation.  Silicon Graphics makes no
  23  * representations about the suitability of this software for any
  24  * purpose.  It is provided "as is" without express or implied warranty.
  25  */
  26
  27 /* NOTE: This is an internal header file, included by other STL headers.
  28  *   You should not attempt to use it directly.
  29  */
  30
  31 #ifndef __SGI_STL_INTERNAL_CONSTRUCT_H
  32 #define __SGI_STL_INTERNAL_CONSTRUCT_H
  33
  34 #include <new.h>
  35
  36 __STL_BEGIN_NAMESPACE
  37
  38 // construct and destroy.  These functions are not part of the C++ standard,
  39 // and are provided for backward compatibility with the HP STL.
  40
  41 template <class _Tp>
  42 inline void destroy(_Tp* __pointer) {
  43   __pointer->~_Tp();
  44 }
  45
  46 template <class _T1, class _T2>
  47 inline void construct(_T1* __p, const _T2& __value) {
  48   new (__p) _T1(__value);
  49 }
  50
  51 template <class _T1>
  52 inline void construct(_T1* __p) {
  53   new (__p) _T1();
  54 }
  55
  56 template <class _ForwardIterator>
  57 inline void
  58 __destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type)
  59 {
  60   for ( ; __first != __last; ++__first)
  61     destroy(&*__first);
  62 }
  63
  64 template <class _ForwardIterator>
  65 inline void __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type) {}
  66
  67 template <class _ForwardIterator, class _Tp>
  68 inline void
  69 __destroy(_ForwardIterator __first, _ForwardIterator __last, _Tp*)
  70 {
  71   typedef typename __type_traits<_Tp>::has_trivial_destructor
  72           _Trivial_destructor;
  73   __destroy_aux(__first, __last, _Trivial_destructor());
  74 }
  75
  76 template <class _ForwardIterator>
  77 inline void destroy(_ForwardIterator __first, _ForwardIterator __last) {
  78   __destroy(__first, __last, __VALUE_TYPE(__first));
  79 }
  80
  81 inline void destroy(char*, char*) {}
  82 inline void destroy(wchar_t*, wchar_t*) {}
  83
  84 __STL_END_NAMESPACE
  85
  86 #endif /* __SGI_STL_INTERNAL_CONSTRUCT_H */
  87
  88 // Local Variables:
  89 // mode:C++
  90 // End: