print_collection.hpp

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//=======================================================================
// Copyright (c) 2014 Piotr Wygocki
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//=======================================================================
#ifndef PAAL_PRINT_COLLECTION_HPP
#define PAAL_PRINT_COLLECTION_HPP

#include <boost/range/empty.hpp>
#include <boost/range.hpp>

namespace paal {

template <typename Range, typename Stream>
void print_collection(Stream &o, Range &&r, const std::string &del) {
    auto b = std::begin(r);
    auto e = std::end(r);
    if (b == e) {
        return;
    }
    o << *b;
    for (auto &&x : boost::make_iterator_range(++b, e)) {
        o << del << x;
    }
}

template <typename Matrix, typename Stream>
void print_matrix(Stream &o, Matrix &&m, const std::string &del) {
    auto b = m.begin1();
    auto e = m.end1();
    if (b == e) {
        return;
    }
    print_collection(o, b, del);
    for (++b ;b != e; ++b) {
        o << std::endl;
        print_collection(o, b, del);
    }
}

} 

#endif // PAAL_PRINT_COLLECTION_HPP