void clear();

/////////////////////////////////////////////////////////////////////////////
// map_def: map definitions for maps loaded from .des files.
// 
// Please read this before changing map_def.
// 
// When adding Lua-visible fields to map_def, note that there are two
// kinds of fields:
// 
// * Fields that determine placement of the map, or are unchanging,
//   such as "place", "depths" (determine placement), or "name" (does
//   not change between different evaluations of the map). Such fields
//   must be reset to their default values in map_def::init() if they
//   determine placement, or just initialised in the constructor if
//   they will not change.
//   
// * Fields that do not determine placement and may change between
//   different uses of the map (such as "mons", "items",
//   "level_flags", etc.). Such fields must be reset to their default
//   values in map_def::reinit(), which is called before the map is
//   used.
//
// If you do not do this, maps will not work correctly, and will break
// in obscure, hard-to-find ways. The level-compiler will not (cannot)
// warn you.
// 

    level_flags.clear();
    branch_flags.clear();
    

{
}
void map_flags::clear()

    flags_set = flags_unset = 0;

    try {

    try
    {