Main Page

Source Files

Class Hierarchy

Alphabetical List

Compound List

Compound Members

File Members

Related Pages

Search for

---

libsrc/makeroom.cxx

Go to the documentation of this file.

/**********************************************************************
 * Copyright 2002 Jeff Rush <jrush@taupro.com>
 * Original Copyright 1979-2002 Udanax.com
 *
 * This file is part of the Udanax xanalogical storage system.
 *
 * Udanax 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
 * (at your option) any later version.
 *
 * Udanax 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 Udanax; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 **********************************************************************/

/* Modification History:
 * $Log: makeroom.cxx,v $
 * Revision 1.9  2004/09/04 16:02:17  jrush
 * Added Doxygen headers before each and every function definition.
 *
 * Revision 1.8  2002/05/28 04:22:29  jrush
 * Adjusted source files to comply with GPL licensing.
 *
 * Revision 1.7  2002/05/28 02:51:11  jrush
 * Made static any functions and global variables private to this source file
 * and commented out any unused functions.
 *
 * Revision 1.6  2002/04/12 11:56:43  jrush
 * Reorganized include file layout, renamed xanadu.h to udanax.h and
 * typecontext/typecrumcontext to C++ class Context/CrumContext.
 *
 * Revision 1.5  2002/04/09 21:45:46  jrush
 * Renamed class 'tumbler' to 'Tumbler', for consistency with Python sources,
 * and changed typeisa from typedef to a subclass, in preparation for cleaning
 * up the type/class tree.
 *
 * Revision 1.4  2002/04/06 19:51:30  jrush
 * Renamed TRUE/FALSE constant use to the C++ standard of true/false.
 *
 * Revision 1.3  2002/04/06 15:01:17  jrush
 * Changed INT to just 'int'.
 *
 * Revision 1.2  2002/02/14 09:27:43  jrush
 * Cleaned up source:
 *
 * 1. ran thru the indent tool to achieve a standard look,
 * 2. added structured comments at top for use with DOxygen reporting
 *    as well as CVS keywords,
 * 3. fixed compiler warnings re ambiguous assign/compares,
 *    needed casts and unused/uninitialized variables,
 * 4. fixed funcs that didn't specify a return type,
 * 5. centralized prototypes in protos.h, removing incomplete ones,
 * 6. cleaned up use of bool/BOOLEAN type to suit C++ type,
 * 7. fixed initializer nesting in tumbler constants,
 * 8. renamed vars that conflict with C++ keywords (new, this),
 * 9. fixed global/extern confusion re some global vars.
 *
 */

#include "udanax.h"

    static void
expandcrumleftward(
    typecorecrum *crumptr,
    Tumbler      *newdsp,
    Tumbler      *base,
    int           index)
{
    typecorecrum *ptr;

#ifndef DISTRIBUTION
    foo("entering expandcrum leftward \n");
#endif

    movetumbler(newdsp, &crumptr->cdsp.dsas[index]);
    tumbleradd(base, &crumptr->cwid.dsas[index], &crumptr->cwid.dsas[index]);

#ifndef DISTRIBUTION
    footumbler("in expandcrumleftward cwid = ", &crumptr->cwid.dsas[index]);
#endif

    ptr = findleftson((typecuc *) crumptr);
    for (; ptr; ptr = (typecorecrum *) findrightbro(ptr)) {
        tumbleradd(base, &ptr->cdsp.dsas[index], &ptr->cdsp.dsas[index]);
        ivemodified(ptr);

#ifndef DISTRIBUTION
        footumbler("in expandcrumleftward cdsp = ", &crumptr->cdsp.dsas[index]);
#endif

    }

#ifndef DISTRIBUTION
    foo("leaveing expandcrum leftward \n");
#endif
}

    void
makeroomonleftnd(
    typecuc *father,
    typedsp *offset,
    typewid *origin,
    typedsp *grasp)
{
    typedsp newdsp;
    Tumbler base;
    int i;
    int savedebug;

#ifndef DISTRIBUTION
    savedebug = debug;
/* if(!is1story(offset)){ debug = true; } */
    foo("entering makeroomonleftnd\n");
#endif

    prologuend((typecorecrum *) father, offset, grasp, (typedsp *) NULL);
    for (i = 0; i < widsize(father->cenftype); ++i) {
        if (tumblercmp(&origin->dsas[i], &grasp->dsas[i]) == LESS) {
#ifndef DISTRIBUTION
            footumbler(" origin = ", &origin->dsas[i]);
            footumbler(" grasp = ", &grasp->dsas[i]);
#endif
            tumblersub(&grasp->dsas[i], &origin->dsas[i], &base);
#ifndef DISTRIBUTION
            footumbler(" base = ", &base);
            footumbler(" origin = ", &origin->dsas[i]);
            footumbler(" offset = ", &offset->dsas[i]);
#endif
            tumblersub(&origin->dsas[i], &offset->dsas[i], &newdsp.dsas[i]);
#ifndef DISTRIBUTION
            footumbler(" newdsp = ", &newdsp.dsas[i]);
#endif
            expandcrumleftward((typecorecrum *) father, &newdsp.dsas[i], &base, i);
            prologuend((typecorecrum *) father, offset, grasp, (typedsp *) NULL);
        }
    }
#ifndef DISTRIBUTION
    foo("leaving makeroomonleftnd\n");
    debug = savedebug;
#endif
}

---