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src/stl/_remove_copy_if.hpp

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#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_REMOVE_COPY_IF_HPP
#define INSTIGATE_STL_REMOVE_COPY_IF_HPP

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

// headers from other project

// headers from standard library

// forward declaration
namespace instigate {
        namespace stl {
                template <typename I, typename O, typename P>
                O remove_copy_if(I b, I e, O r, P p);
        }
}

template <typename I, typename O, typename P>
O instigate::stl::remove_copy_if(I b, I e, O r, P p)
{
        namespace SP = instigate::stl::single_pass_iterator;
        namespace RI = instigate::stl::readable_iterator;
        namespace INC = instigate::stl::incrementable_iterator;
        namespace WR = instigate::stl::writable_iterator;
        namespace EQ = instigate::generic::equality_comparable;
        namespace UP = instigate::stl::unary_predicate;
        typedef typename RI::interface<I>::value_type value_type1; 
        typedef typename WR::interface<O>::value_type value_type2;
        typedef typename UP::interface<P>::argument_type argument_type;
        CHECK(SP::requirements<I>);
        CHECK(RI::requirements<I>);
        CHECK(INC::requirements<O>);
        CHECK(WR::requirements<O>); 
        CHECK(UP::requirements<P>); 
        CHECK_CONVERTIBILITY(value_type1, value_type2);
        CHECK_CONVERTIBILITY(value_type1, argument_type);
        while (!equal(b, e)) {
                if (!invoke_predicate(p, const_dereference(b))) {
                        dereference_assign(r, const_dereference(b));
                        increment(r);
                }
                increment(b);
        }
        return r;
}

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

#endif // INSTIGATE_STL_REMOVE_COPY_IF_HPP

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