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/*
*
* 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.
*
*/
#ifndef DEFALLOC_H
#define DEFALLOC_H
#include <new.h>
#include <stddef.h>
#include <stdlib.h>
#include <limits.h>
#include <iostream.h>
#include <algobase.h>
// "sun" is a symbol predefined by Sun's CC compiler
#ifndef sun
inline void* operator new(size_t, void* p) {return p;}
// void* operator new(size_t, void* p) {return p;} //-PAH
#endif
/*
* the following template function is replaced by the following two functions
* due to the fact that the Borland compiler doesn't change prediff_t type
* to type long when compile with -ml or -mh.
template <class T>
inline T* allocate(ptrdiff_t size, T*) {
set_new_handler(0);
T* tmp = (T*)(::operator new((size_t)(size * sizeof(T))));
if (tmp == 0) {
cerr << "out of memory" << endl;
exit(1);
}
return tmp;
}
*/
template <class T>
inline T* allocate(int size, T*) {
set_new_handler(0);
T* tmp = (T*)(::operator new((unsigned int)(size * sizeof(T))));
if (tmp == 0) {
cerr << "out of memory" << endl;
exit(1);
}
return tmp;
}
template <class T>
inline T* allocate(long size, T*) {
set_new_handler(0);
T* tmp = (T*)(::operator new((unsigned long)(size * sizeof(T))));
if (tmp == 0) {
cerr << "out of memory" << endl;
exit(1);
}
return tmp;
}
template <class T>
inline void deallocate(T* buffer) {
::operator delete(buffer);
}
template <class T>
inline void destroy(T* pointer) {
pointer->~T();
}
inline void destroy(char*) {}
inline void destroy(unsigned char*) {}
inline void destroy(short*) {}
inline void destroy(unsigned short*) {}
inline void destroy(int*) {}
inline void destroy(unsigned int*) {}
inline void destroy(long*) {}
inline void destroy(unsigned long*) {}
inline void destroy(float*) {}
inline void destroy(double*) {}
inline void destroy(char**) {}
inline void destroy(unsigned char**) {}
inline void destroy(short**) {}
inline void destroy(unsigned short**) {}
inline void destroy(int**) {}
inline void destroy(unsigned int**) {}
inline void destroy(long**) {}
inline void destroy(unsigned long**) {}
inline void destroy(float**) {}
inline void destroy(double**) {}
inline void destroy(char*, char*) {}
inline void destroy(unsigned char*, unsigned char*) {}
inline void destroy(short*, short*) {}
inline void destroy(unsigned short*, unsigned short*) {}
inline void destroy(int*, int*) {}
inline void destroy(unsigned int*, unsigned int*) {}
inline void destroy(long*, long*) {}
inline void destroy(unsigned long*, unsigned long*) {}
inline void destroy(float*, float*) {}
inline void destroy(double*, double*) {}
inline void destroy(char**, char**) {}
inline void destroy(unsigned char**, unsigned char**) {}
inline void destroy(short**, short**) {}
inline void destroy(unsigned short**, unsigned short**) {}
inline void destroy(int**, int**) {}
inline void destroy(unsigned int**, unsigned int**) {}
inline void destroy(long**, long**) {}
inline void destroy(unsigned long**, unsigned long**) {}
inline void destroy(float**, float**) {}
inline void destroy(double**, double**) {}
template <class T1, class T2>
inline void construct(T1* p, const T2& value) {
new (p) T1(value);
}
template <class T>
class allocator {
public:
typedef T value_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
pointer allocate(size_type n) {
return ::allocate((difference_type)n, (pointer)0);
}
void deallocate(pointer p) { ::deallocate(p); }
pointer address(reference x) { return (pointer)&x; }
const_pointer const_address(const_reference x) {
return (const_pointer)&x;
}
size_type init_page_size() {
return max(size_type(1), size_type(4096/sizeof(T)));
}
size_type max_size() const {
return max(size_type(1), size_type(UINT_MAX/sizeof(T)));
}
};
class allocator<void> {
public:
typedef void* pointer;
};
#endif
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