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fb2130e Dec 25, 2011
197 lines (160 sloc) 4.43 KB
/* Copyright (C) 2004 Garrett A. Kajmowicz
This file is part of the uClibc++ Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <new>
#include <cstddef>
#include <cstdlib>
#include <iterator_base>
#include <utility.h>
#include <cstdio>
#ifndef HEADER_STD_MEMORY
#define HEADER_STD_MEMORY 1
#pragma GCC visibility push(default)
namespace std{
template <class T> class allocator;
// Specialize for void:
template <> class _UCXXEXPORT allocator<void> {
public:
typedef void* pointer;
typedef const void* const_pointer;
typedef void value_type;
template <class U> struct rebind { typedef allocator<U> other; };
};
template <class T> class _UCXXEXPORT allocator{
public:
typedef T value_type;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
pointer address(reference r) const { return &r; }
const_pointer address(const_reference r) const { return &r; }
allocator() throw(){}
template <class U> allocator(const allocator<U>& ) throw();
~allocator() throw(){}
//Space for n Ts
pointer allocate(size_type n, typename allocator<void>::const_pointer = 0){
return (T*)(::operator new( n * sizeof(T) ));
}
void deallocate(pointer p, size_type){
::operator delete(p);
}
//Use placement new to engage the constructor
void construct(pointer p, const T& val) { new((void*)p) T(val); }
void destroy(pointer p){ ((T*)p)->~T(); } //Call destructor
size_type max_size() const throw();
template<class U> struct rebind { typedef allocator<U> other; };
};
template <class Out, class T> class _UCXXEXPORT raw_storage_iterator
: public iterator<output_iterator_tag, void, void, void, void>
{
Out p;
public:
explicit raw_storage_iterator(Out pp) : p (pp) { }
raw_storage_iterator & operator*() { return *this; }
raw_storage_iterator & operator=(const T& val) {
T* pp = &*p;
new(pp) T(val);
return *this;
}
raw_storage_iterator & operator++() { ++p; return *this; }
raw_storage_iterator operator++(int) {
raw_storage_iterator t = *this;
++p;
return t;
}
};
template <class T> _UCXXEXPORT pair<T*, ptrdiff_t> get_temporary_buffer(ptrdiff_t n){
pair<T*, ptrdiff_t> retval;
retval.first = static_cast<T*>(malloc(n * sizeof(T)));
if(retval.first == 0){
retval.second = 0;
}else{
retval.second = n;
}
return retval;
}
template <class T> _UCXXEXPORT void return_temporary_buffer(T* p){
free(p);
}
template <class T> class _UCXXEXPORT auto_ptr{
private:
T * object;
template <class Y> struct auto_ptr_ref{
Y * p;
};
public:
typedef T element_type;
explicit auto_ptr(T* p =0) throw() : object(p){ }
auto_ptr(auto_ptr& p) throw() : object(p.release()){ }
auto_ptr(auto_ptr_ref<T> r) throw() : object(r.p){
r.p = 0;
}
template<class Y> auto_ptr(auto_ptr<Y>& p) throw() : object(p.release()){ }
auto_ptr& operator=(auto_ptr& p) throw(){
if(&p == this){
return *this;
}
delete object;
object = p.release();
return *this;
}
template<class Y> auto_ptr& operator=(auto_ptr<Y>& p) throw(){
if(&p == this){
return *this;
}
delete object;
object = p.release();
return *this;
}
~auto_ptr(){
delete object;
}
T& operator*() const throw(){
return *object;
}
T* operator->() const throw(){
return object;
}
T* get() const throw(){
return object;
}
T* release() throw(){
T * temp(object);
object = 0;
return temp;
}
void reset(T * p=0) throw(){
if(p != object){
delete object;
object = p;
}
}
template<class Y> operator auto_ptr_ref<Y>() throw(){
auto_ptr_ref<Y> retval;
retval.p = object;
object = 0;
return retval;
}
template<class Y> operator auto_ptr<Y>() throw(){
auto_ptr<Y> retval(object);
object = 0;
return retval;
}
};
} //namespace std
#pragma GCC visibility pop
#endif