SGStringList.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 2012 Fernando José Iglesias García
 * Written (W) 2010,2012 Soeren Sonnenburg
 * Copyright (C) 2010 Berlin Institute of Technology
 * Copyright (C) 2012 Soeren Sonnenburg
 */
#ifndef __SGSTRINGLIST_H__
#define __SGSTRINGLIST_H__

#include <shogun/lib/config.h>
#include <shogun/lib/DataType.h>
#include <shogun/lib/SGString.h>

namespace shogun
{
template <class T> struct SGStringList
{
public:
    SGStringList() : num_strings(0), max_string_length(0), strings(NULL),
        do_free(false) { }

    SGStringList(SGString<T>* s, index_t num_s, index_t max_length,
            bool free_strings=false) : num_strings(num_s),
            max_string_length(max_length), strings(s), do_free(free_strings) { }

    SGStringList(index_t num_s, index_t max_length, bool free_strings=false)
        : num_strings(num_s), max_string_length(max_length),
          do_free(free_strings)
    {
        strings=SG_MALLOC(SGString<T>, num_strings);
    }

    SGStringList(const SGStringList &orig) :
        num_strings(orig.num_strings),
        max_string_length(orig.max_string_length),
        strings(orig.strings), do_free(orig.do_free) { }

    void free_list()
    {
        if (do_free)
            SG_FREE(strings);

        strings=NULL;
        do_free=false;
        num_strings=0;
        max_string_length=0;
    }

    void destroy_list()
    {
        do_free=true;
        free_list();
    }

public:
    index_t num_strings;

    index_t max_string_length;

    SGString<T>* strings;

    bool do_free;
};
}
#endif // __SGSTRINGLIST_H__