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      1 /*
      2  *
      3  *
      4  * Copyright (c) 1994
      5  * Hewlett-Packard Company
      6  *
      7  * Copyright (c) 1996,1997
      8  * Silicon Graphics Computer Systems, Inc.
      9  *
     10  * Copyright (c) 1997
     11  * Moscow Center for SPARC Technology
     12  *
     13  * Copyright (c) 1999
     14  * Boris Fomitchev
     15  *
     16  * This material is provided "as is", with absolutely no warranty expressed
     17  * or implied. Any use is at your own risk.
     18  *
     19  * Permission to use or copy this software for any purpose is hereby granted
     20  * without fee, provided the above notices are retained on all copies.
     21  * Permission to modify the code and to distribute modified code is granted,
     22  * provided the above notices are retained, and a notice that the code was
     23  * modified is included with the above copyright notice.
     24  *
     25  */
     26 #ifndef _STLP_TEMPBUF_C
     27 #define _STLP_TEMPBUF_C
     28 
     29 #ifndef _STLP_INTERNAL_TEMPBUF_H
     30 # include <stl/_tempbuf.h>
     31 #endif
     32 
     33 _STLP_BEGIN_NAMESPACE
     34 
     35 template <class _Tp>
     36 pair<_Tp*, ptrdiff_t> _STLP_CALL
     37 __get_temporary_buffer(ptrdiff_t __len, _Tp*)
     38 {
     39   if (__len > ptrdiff_t(INT_MAX / sizeof(_Tp)))
     40     __len = INT_MAX / sizeof(_Tp);
     41 
     42   while (__len > 0) {
     43     _Tp* __tmp = (_Tp*) malloc((size_t)__len * sizeof(_Tp));
     44     if (__tmp != 0)
     45       return pair<_Tp*, ptrdiff_t>(__tmp, __len);
     46     __len /= 2;
     47   }
     48 
     49   return pair<_Tp*, ptrdiff_t>((_Tp*)0, 0);
     50 }
     51 _STLP_END_NAMESPACE
     52 
     53 #endif /*  _STLP_TEMPBUF_C */
     54 
     55 // Local Variables:
     56 // mode:C++
     57 // End:
     58