#include "dthdr.h"
#ifdef DMALLOC
#include "dmalloc.h"
#endif
#if __STD_C
int dtrestore(reg Dt_t* dt, reg Dtlink_t* list)
#else
int dtrestore(dt, list)
reg Dt_t* dt;
reg Dtlink_t* list;
#endif
{
reg Dtlink_t *t, **s, **ends;
reg int type;
reg Dtsearch_f searchf = dt->meth->searchf;
type = dt->data->type&DT_FLATTEN;
if(!list)
{ if(!type)
return -1;
list = dt->data->here;
}
else
{ if(dt->data->size != 0)
return -1;
type = 0;
}
dt->data->type &= ~DT_FLATTEN;
if(dt->data->type&(DT_SET|DT_BAG))
{ dt->data->here = NIL(Dtlink_t*);
if(type)
{ for(ends = (s = dt->data->htab) + dt->data->ntab; s < ends; ++s)
{ if((t = *s) )
{ *s = list;
list = t->right;
t->right = NIL(Dtlink_t*);
}
}
}
else
{ dt->data->size = 0;
while(list)
{ t = list->right;
(*searchf)(dt,(Void_t*)list,DT_RENEW);
list = t;
}
}
}
else
{ if(dt->data->type&(DT_OSET|DT_OBAG))
dt->data->here = list;
else
{ dt->data->here = NIL(Dtlink_t*);
dt->data->head = list;
}
if(!type)
dt->data->size = -1;
}
return 0;
}