Instigate Open Source Documentation

---

src/stl/_includes.hpp

Go to the documentation of this file.

#ifndef _INSTIGATE_STL_INTERNAL_HEADER_IN_ALGORITHM
#error This is an internal header file used to implement Instigate STL.\
        It should never be included directly by a program.
#endif

#ifndef INSTIGATE_STL_INCLUDES_HPP
#define INSTIGATE_STL_INCLUDES_HPP

// headers from this project
#include "concept.hpp"

// headers from other project
#include <generic/base.hpp>

// headers from standard library

// forward declaration
namespace instigate {
        namespace stl {
                template <typename I, typename I1>
                bool includes(I b, I e, I1 f, I1 l);

                template <typename I, typename I1, typename BP>
                bool includes(I b, I e, I1 f, I1 l, BP p);
        }
}

template <typename I, typename I1>
bool instigate::stl::includes(I b, I e, I1 f, I1 l)
{
        namespace SP = instigate::stl::single_pass_iterator;
        namespace RI = instigate::stl::readable_iterator;
        namespace EQ = instigate::generic::equality_comparable;
        namespace LT = instigate::generic::less_than_comparable;
        CHECK(SP::requirements<I>);
        CHECK(RI::requirements<I>);
        CHECK(SP::requirements<I1>);
        CHECK(RI::requirements<I1>);
        typedef typename RI::interface<I>::value_type value_type1;
        typedef typename RI::interface<I1>::value_type value_type2;
        CHECK_SAME_TYPE(value_type1, value_type2);      
        CHECK(LT::requirements<value_type1>);
        while (!equal(b, e) && !equal(f, l))
                if (less_than(const_dereference(f),const_dereference(b))) {
                        return false;
                }
                else if(less_than(const_dereference(b), const_dereference(f))) 
                {
                        increment(b);
                } else{
                        increment(b);
                        increment(f);
                }
        return equal(f, l);
}

template <typename I, typename I1, typename BP>
bool instigate::stl::includes(I b, I e, I1 f, I1 l, BP p)
{
        namespace SP = instigate::stl::single_pass_iterator;
        namespace RI = instigate::stl::readable_iterator;
        namespace EQ = instigate::generic::equality_comparable;
        namespace LT = instigate::generic::less_than_comparable;
        namespace BI = instigate::stl::binary_predicate;
        CHECK(SP::requirements<I>);
        CHECK(RI::requirements<I>);
        CHECK(SP::requirements<I1>);
        CHECK(RI::requirements<I1>);
        CHECK(BI::requirements<BP>);
        typedef typename RI::interface<I>::value_type value_type1;
        typedef typename RI::interface<I1>::value_type value_type2;
        CHECK_SAME_TYPE(value_type1, value_type2);      
        CHECK(LT::requirements<value_type1>);
        while (!equal(b, e) && !equal(f, l))
                if (invoke_predicate(p, const_dereference(f), 
                                        const_dereference(b))) 
                {
                        return false;
                } 
                else if (invoke_predicate(p, const_dereference(b),
                                                        const_dereference(f)))
                { 
                        increment(b);
                } else {
                        increment(b);
                        increment(f);
                }
        return equal(f, l);
}

// vim:et:tabstop=8:shiftwidth=8:cindent:fo=croq:textwidth=80:

#endif // INSTIGATE_STL_INCLUDES_HPP

---

© Instigate CJSC, Open Source