path: root/src/utils/strprintf.cpp

/*
 *  The Mana World
 *  Copyright 2007 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World 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 2 of the License, or
 *  any later version.
 *
 *  The Mana World is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with The Mana World; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  $Id: strprintf.cpp 3416 2007-08-06 06:20:14Z gmelquio $
 */

#include <cstdarg>
#include <cstdio>

#include "strprintf.h"

std::string strprintf(char const *format, ...)
{
    char buf[256];
    va_list(args);
    va_start(args, format);
    int nb = vsnprintf(buf, 256, format, args);
    va_end(args);
    if (nb < 256)
    {
        return buf;
    }
    // The static size was not big enough, try again with a dynamic allocation.
    ++nb;
    char *buf2 = new char[nb];
    va_start(args, format);
    vsnprintf(buf2, nb, format, args);
    va_end(args);
    std::string res(buf2);
    delete [] buf2;
    return res;
}