#include <iostream.h>#include <fstream.h>#include <stdio.h>#include <stdlib.h>#include <assert.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <math.h>//#include "Set.h"//#include "utils.h"//#include "globals.h"//#include "sample.h"const int VEC_BLOCK_SIZE=10240;static int dimensionality;#ifdef ASCIIifstream ifile;#elsestatic int fd;//static ifstream ifile;static int curOffset;static char *tmpBuf;static int bytesRead;#endifvoid SetupVectorScan(char *fileName, char *buffer, int dimn){  fd = open(fileName, O_RDONLY);  assert(fd != -1);  assert(dimn > 0);  dimensionality = dimn;  curOffset = 0;  bytesRead = 0;  tmpBuf = buffer + VEC_BLOCK_SIZE;}intgetNextVector(Vector& vec, char *buffer){  if ((tmpBuf - buffer) >= bytesRead)    {      bytesRead = getNextBlock(}