5acb90c9b6
a small amount of unused stuff (by the bmakefiles to follow), but it isn't much and seems harmless enough.
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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#ifndef TEMPBUF_H
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#define TEMPBUF_H
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#include <limits.h>
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#include <pair.h>
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#ifndef __stl_buffer_size
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#define __stl_buffer_size 16384 // 16k
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#endif
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extern char __stl_temp_buffer[__stl_buffer_size];
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//not reentrant code
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template <class T>
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pair<T*, int> get_temporary_buffer(int len, T*) {
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while (len > __stl_buffer_size / sizeof(T)) {
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set_new_handler(0);
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T* tmp = (T*)(::operator new((unsigned int)len * sizeof(T)));
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if (tmp) return pair<T*, int>(tmp, len);
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len = len / 2;
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}
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return pair<T*, int>((T*)__stl_temp_buffer,
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(int)(__stl_buffer_size / sizeof(T)));
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}
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template <class T>
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void return_temporary_buffer(T* p) {
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if ((char*)(p) != __stl_temp_buffer) deallocate(p);
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}
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template <class T>
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pair<T*, long> get_temporary_buffer(long len, T* p) {
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if (len > INT_MAX/sizeof(T))
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len = INT_MAX/sizeof(T);
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pair<T*, int> tmp = get_temporary_buffer((int)len, p);
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return pair<T*, long>(tmp.first, (long)(tmp.second));
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}
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#endif
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