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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-31 19:13:18 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-31 19:13:18 +0000 |
commit | 329b6095ddda830433e6000b943fab82d1c83cf1 (patch) | |
tree | 605301a07119dea4433c994f9000743eed20d165 /misc/uClibc++/include/cxx/iterator_base | |
parent | 8f6e28f194274bde92d11c6383167ddbcc496cb3 (diff) | |
download | nuttx-329b6095ddda830433e6000b943fab82d1c83cf1.tar.gz nuttx-329b6095ddda830433e6000b943fab82d1c83cf1.tar.bz2 nuttx-329b6095ddda830433e6000b943fab82d1c83cf1.zip |
Add misc/uClibc++ and build hooks in nuttx/
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5283 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'misc/uClibc++/include/cxx/iterator_base')
-rw-r--r-- | misc/uClibc++/include/cxx/iterator_base | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/misc/uClibc++/include/cxx/iterator_base b/misc/uClibc++/include/cxx/iterator_base new file mode 100644 index 000000000..1cae58966 --- /dev/null +++ b/misc/uClibc++/include/cxx/iterator_base @@ -0,0 +1,305 @@ +/* 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 <basic_definitions> + +#ifndef __STD_HEADER_ITERATOR_BASE +#define __STD_HEADER_ITERATOR_BASE 1 + +#pragma GCC visibility push(default) + +namespace std{ + template<class Iterator> struct iterator_traits; + template<class T> struct iterator_traits<T*>; + + template<class Category, class T, class Distance = ptrdiff_t, class Pointer = T*, class Reference = T&> struct iterator; + + struct _UCXXEXPORT input_iterator_tag {}; + struct _UCXXEXPORT output_iterator_tag {}; + struct _UCXXEXPORT forward_iterator_tag: public input_iterator_tag {}; + struct _UCXXEXPORT bidirectional_iterator_tag: public forward_iterator_tag {}; + struct _UCXXEXPORT random_access_iterator_tag: public bidirectional_iterator_tag {}; + + template <class InputIterator, class Distance> _UCXXEXPORT void advance(InputIterator& i, Distance n){ + while(n > 0){ + --n; + ++i; + } + } + + template <class InputIterator> _UCXXEXPORT typename iterator_traits<InputIterator>::difference_type + distance(InputIterator first, InputIterator last) + { + typename iterator_traits<InputIterator>::difference_type d = 0; + while(first++ !=last){ + d++; + } + return d; + } + + // subclause _lib.predef.iterators_, predefined iterators: + template <class Iterator> class reverse_iterator; + template <class Iterator> bool operator==(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> bool operator<(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> bool operator!=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> bool operator>(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> bool operator>=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> bool operator<=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> typename reverse_iterator<Iterator>::difference_type + operator-( const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + template <class Iterator> reverse_iterator<Iterator> + operator+( typename reverse_iterator<Iterator>::difference_type n, const reverse_iterator<Iterator>& x); + template <class Container> class back_insert_iterator; + template <class Container> back_insert_iterator<Container> back_inserter(Container& x); + template <class Container> class front_insert_iterator; + template <class Container> front_insert_iterator<Container> front_inserter(Container& x); + template <class Container> class insert_iterator; + template <class Container, class Iterator> + insert_iterator<Container> inserter(Container& x, Iterator i); + + //Actual Template definitions + + template<class Iterator> struct _UCXXEXPORT iterator_traits { + typedef typename Iterator::difference_type difference_type; + typedef typename Iterator::value_type value_type; + typedef typename Iterator::pointer pointer; + typedef typename Iterator::reference reference; + typedef typename Iterator::iterator_category iterator_category; + }; + + //Pointer specialization - required by standard + template<class T> struct _UCXXEXPORT iterator_traits<T*> { + typedef ptrdiff_t difference_type; + typedef T value_type; + typedef T* pointer; + typedef T& reference; + typedef random_access_iterator_tag iterator_category; + }; + + //Specialization recomended by standard +/* template<class T> struct _UCXXEXPORT iterator_traits<T __far*> { + typedef long difference_type; + typedef T value_type; + typedef T __far* pointer; + typedef T __far& reference; + typedef random_access_iterator_tag iterator_category; + };*/ + +/* template <class BidirectionalIterator> _UCXXEXPORT void + reverse(BidirectionalIterator first, BidirectionalIterator last) + { + typename iterator_traits<BidirectionalIterator>::difference_type n = distance(first, last); + --n; + while(n > 0){ + typename iterator_traits<BidirectionalIterator>::value_type tmp = *first; + *first++ = * --last; + *last = tmp; + n -= 2; + } + };*/ + + + template <class Category, class T, class Distance, class Pointer, class Reference> + struct _UCXXEXPORT iterator + { + typedef T value_type; + typedef Distance difference_type; + typedef Pointer pointer; + typedef Reference reference; + typedef Category iterator_category; + }; + + + template <class Iterator> class _UCXXEXPORT reverse_iterator + : public iterator<typename iterator_traits<Iterator>::iterator_category, + typename iterator_traits<Iterator>::value_type, typename iterator_traits<Iterator>::difference_type, + typename iterator_traits<Iterator>::pointer, typename iterator_traits<Iterator>::reference> + { + protected: + Iterator current; + friend bool operator== <Iterator>(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + friend bool operator< <Iterator>(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y); + + public: + typedef Iterator iterator_type; + + reverse_iterator() : current(){}; + explicit reverse_iterator(Iterator x) : current(x) { } + template<class U> reverse_iterator(const reverse_iterator<U> &x) : current(x.base()){} + + Iterator base() const { return current; } // explicit + + typename iterator_traits<Iterator>::reference operator*() const { Iterator tmp = current; return *--tmp; } + typename iterator_traits<Iterator>::pointer operator->() const { return &(operator*()); } + typename iterator_traits<Iterator>::reference operator[](typename iterator_traits<Iterator>::difference_type n) const{ + return current[-n-1]; + } + + reverse_iterator& operator++(){ --current; return *this; } + reverse_iterator operator++(int) {reverse_iterator tmp = *this; --current; return tmp; } + reverse_iterator& operator--() { ++ current; return *this; } + reverse_iterator operator--(int) {reverse_iterator tmp = *this; ++current; return tmp; } + + reverse_iterator operator+ (typename iterator_traits<Iterator>::difference_type n) const{ + reverse_iterator retval( *this ); + retval+=n; + return retval; + } + reverse_iterator& operator+=(typename iterator_traits<Iterator>::difference_type n){ + current -= n; + return *this; + } + reverse_iterator operator- (typename iterator_traits<Iterator>::difference_type n) const{ + reverse_iterator retval( *this ); + retval-=n; + return retval; + } + reverse_iterator& operator-=(typename iterator_traits<Iterator>::difference_type n){ + current += n; + return *this; + } + }; + + + template <class Iterator> _UCXXEXPORT bool + operator==(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() == y.base(); + } + template <class Iterator> _UCXXEXPORT bool + operator<(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() < y.base(); + } + template <class Iterator> _UCXXEXPORT bool + operator!=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() != y.base(); + } + template <class Iterator> _UCXXEXPORT bool + operator>(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() > y.base(); + } + template <class Iterator> _UCXXEXPORT bool + operator>=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() >= y.base(); + } + template <class Iterator> _UCXXEXPORT bool + operator<=(const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return x.base() <= y.base(); + } + template <class Iterator> _UCXXEXPORT typename reverse_iterator<Iterator>::difference_type + operator-( const reverse_iterator<Iterator>& x, const reverse_iterator<Iterator>& y) + { + return y.base() - x.base(); + } + template <class Iterator> _UCXXEXPORT reverse_iterator<Iterator> + operator+(typename reverse_iterator<Iterator>::difference_type n, const reverse_iterator<Iterator>& x) + { + return reverse_iterator<Iterator> (x.base() - n); + } + + template <class Container> class _UCXXEXPORT back_insert_iterator : + public iterator<output_iterator_tag,void,void,void,void> + { + protected: + Container& container; + public: + typedef Container container_type; + explicit back_insert_iterator(Container& x):container(x) {}; + back_insert_iterator<Container>& operator=(const typename Container::value_type& value){ + container.push_back(value); + return *this; + } + back_insert_iterator<Container>& operator*(){ + return *this; + } + back_insert_iterator<Container>& operator++(){ + return *this; + } + back_insert_iterator<Container> operator++(int){ + return *this; + } + }; + + template <class Container> _UCXXEXPORT back_insert_iterator<Container> + back_inserter(Container& x) + { + return back_insert_iterator<Container>(x); + } + + template <class Container> class _UCXXEXPORT front_insert_iterator + : public iterator<output_iterator_tag,void,void,void,void> + { + protected: + Container& container; + public: + typedef Container container_type; + explicit front_insert_iterator(Container& x): container(x) {} + front_insert_iterator<Container>& operator=(const typename Container::value_type& value){ + container.push_front(value); + return *this; + } + + front_insert_iterator<Container>& operator*() { return *this; } + front_insert_iterator<Container>& operator++() { return *this; } + front_insert_iterator<Container> operator++(int) { return *this; } + }; + + template <class Container> _UCXXEXPORT front_insert_iterator<Container> + front_inserter(Container& x) + { + return front_insert_iterator<Container>(x); + } + + template <class Container> class _UCXXEXPORT insert_iterator + : public iterator<output_iterator_tag,void,void,void,void> + { + protected: + Container& container; + typename Container::iterator iter; + public: + typedef Container container_type; + insert_iterator(Container& x, typename Container::iterator i) : container(x), iter(i) {} + insert_iterator<Container>& operator=(const typename Container::value_type& value){ + iter = container.insert(iter, value); + ++iter; + return *this; + } + insert_iterator<Container>& operator*() { return *this; } + insert_iterator<Container>& operator++() { return *this; } + insert_iterator<Container> operator++(int) { return *this; } + }; + + template <class Container, class Iterator> _UCXXEXPORT insert_iterator<Container> + inserter(Container& x, Iterator i) + { + return insert_iterator<Container>(x,typename Container::iterator(i)); + } + +} + +#pragma GCC visibility pop + +#endif + + |