// (C) Copyright Jeremy Siek 2001.
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
/*
*
* 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.
*
*
* Copyright (c) 1996
* Silicon Graphics Computer Systems, Inc.
*
* 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. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
#ifndef BOOST_ALGORITHM_HPP
# define BOOST_ALGORITHM_HPP
# include <boost/detail/iterator.hpp>
// Algorithms on sequences
//
// The functions in this file have not yet gone through formal
// review, and are subject to change. This is a work in progress.
// They have been checked into the detail directory because
// there are some graph algorithms that use these functions.
#include <algorithm>
#include <vector>
namespace boost {
template <typename Iter1, typename Iter2>
Iter1 begin(const std::pair<Iter1, Iter2>& p) { return p.first; }
template <typename Iter1, typename Iter2>
Iter2 end(const std::pair<Iter1, Iter2>& p) { return p.second; }
template <typename Iter1, typename Iter2>
typename boost::detail::iterator_traits<Iter1>::difference_type
size(const std::pair<Iter1, Iter2>& p) {
return std::distance(p.first, p.second);
}
#if 0
// These seem to interfere with the std::pair overloads :(
template <typename Container>
typename Container::iterator
begin(Container& c) { return c.begin(); }
template <typename Container>
typename Container::const_iterator
begin(const Container& c) { return c.begin(); }
template <typename Container>
typename Container::iterator
end(Container& c) { return c.end(); }
template <typename Container>
typename Container::const_iterator
end(const Container& c) { return c.end(); }
template <typename Container>
typename Container::size_type
size(const Container& c) { return c.size(); }
#else
template <typename T>
typename std::vector<T>::iterator
begin(std::vector<T>& c) { return c.begin(); }
template <typename T>
typename std::vector<T>::const_iterator
begin(const std::vector<T>& c) { return c.begin(); }
template <typename T>
typename std::vector<T>::iterator
end(std::vector<T>& c) { return c.end(); }
template <typename T>
typename std::vector<T>::const_iterator
end(const std::vector<T>& c) { return c.end(); }
template <typename T>
typename std::vector<T>::size_type
size(const std::vector<T>& c) { return c.size(); }
#endif
template <class ForwardIterator, class T>
void iota(ForwardIterator first, ForwardIterator last, T value)
{
for (; first != last; ++first, ++value)
*first = value;
}
template <typename Container, typename T>
void iota(Container& c, const T& value)
{
iota(begin(c), end(c), value);
}
// Also do version with 2nd container?
template <typename Container, typename OutIter>
OutIter copy(const Container& c, OutIter result) {
return std::copy(begin(c), end(c), result);
}
template <typename Container1, typename Container2>
bool equal(const Container1& c1, const Container2& c2)
{
if (size(c1) != size(c2))
return false;
return std::equal(begin(c1), end(c1), begin(c2));
}
template <typename Container>
void sort(Container& c) { std::sort(begin(c), end(c)); }
template <typename Container, typename Predicate>
void sort(Container& c, const Predicate& p) {
std::sort(begin(c), end(c), p);
}
template <typename Container>
void stable_sort(Container& c) { std::stable_sort(begin(c), end(c)); }
template <typename Container, typename Predicate>
void stable_sort(Container& c, const Predicate& p) {
std::stable_sort(begin(c), end(c), p);
}
template <typename InputIterator, typename Predicate>
bool any_if(InputIterator first, InputIterator last, Predicate p)
{
return std::find_if(first, last, p) != last;
}
template <typename Container, typename Predicate>
bool any_if(const Container& c, Predicate p)
{
return any_if(begin(c), end(c), p);
}
template <typename InputIterator, typename T>
bool container_contains(InputIterator first, InputIterator last, T value)
{
return std::find(first, last, value) != last;
}
template <typename Container, typename T>
bool container_contains(const Container& c, const T& value)
{
return container_contains(begin(c), end(c), value);
}
template <typename Container, typename T>
std::size_t count(const Container& c, const T& value)
{
return std::count(begin(c), end(c), value);
}
template <typename Container, typename Predicate>
std::size_t count_if(const Container& c, Predicate p)
{
return std::count_if(begin(c), end(c), p);
}
template <typename ForwardIterator>
bool is_sorted(ForwardIterator first, ForwardIterator last)
{
if (first == last)
return true;
ForwardIterator next = first;
for (++next; next != last; first = next, ++next) {
if (*next < *first)
return false;
}
return true;
}
template <typename ForwardIterator, typename StrictWeakOrdering>
bool is_sorted(ForwardIterator first, ForwardIterator last,
StrictWeakOrdering comp)
{
if (first == last)
return true;
ForwardIterator next = first;
for (++next; next != last; first = next, ++next) {
if (comp(*next, *first))
return false;
}
return true;
}
template <typename Container>
bool is_sorted(const Container& c)
{
return is_sorted(begin(c), end(c));
}
template <typename Container, typename StrictWeakOrdering>
bool is_sorted(const Container& c, StrictWeakOrdering comp)
{
return is_sorted(begin(c), end(c), comp);
}
} // namespace boost
#endif // BOOST_ALGORITHM_HPP