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int DataBase::split(fstream& from,fstream& from0,unsigned int p){
int pos0 = static_cast<int>(from.tellp());
char *a,*b;
Data d,d0;
Index x,x0;
from.clear();
from.seekp(0,ios::end);
int PosEnd = static_cast<int>(from.tellp());
PosEnd -=static_cast<int>(p);
a = new char[PosEnd];
from.seekp(p,ios::beg);
from.read(a,PosEnd);
from.seekp(p+BlockSize,ios::beg);
from.write(a,PosEnd);
from.seekp(p+BlockSize,ios::beg);
b = a+5*RecordSize;
from.write(b,RecordSize*5);
for (int i = 0; i < 5; ++i){
from << d;
}
from.seekp(p+RecordSize*5,ios::beg);
for (int i = 0; i < 5; ++i){
from << d;
}
from.seekg(p+RecordSize*4);
from >> d;
int newmax = d.Id();
from0.seekp(0,ios::end);
int indexend =static_cast<int>(from0.tellp());
from0.seekg(0,ios::beg);
while(true){
from0 >> x;
if(from0.eof())break;
if(x.Pointer() == p){
int oldpos = static_cast<int>(from0.tellp());
oldpos++;
int count = indexend - oldpos;
char *c = new char[count];
from0.seekg(1,ios::cur);
from0.read(c,count);
from0.seekp(oldpos,ios::beg);
x0.Max(x.Max());
x0.Num(5);
x0.Pointer(p + BlockSize);
from0 << x0;
from0.write(c,count);
from0.seekp(oldpos - IndexSize,ios::beg);
x.Max(newmax);
x.Num(5);
from0 << x;
delete c;
from.clear();
from0.seekp(0,ios::beg);
break;
}
}
from.clear();
bool first = false;
while(true){
from0 >> x;
if(from0.eof())break;
if(x.Pointer() > p ){
if(!first){
from0.seekp(-(IndexSize-1),ios::cur);
from0 << x;
int test = from0.tellp();
from0.clear();
first = true;
continue;
}
x.Pointer(x.Pointer()+BlockSize);
from0.seekp(-(IndexSize-1),ios::cur);
from0 << x;
int test = from0.tellp();
}
else{
from0.seekp(-(IndexSize-1),ios::cur);
from0 << x;
int test = from0.tellp();
from0.clear();
}
}
from.clear();
from.seekp(pos0);
delete a;
//delete b;
return 0;
}
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