#include <stdio.h>
/**
 * A cheap way to compare doubles within a small threshold
* @author Alisa Neeman aneeman@cse.ucsc.edu 11/29/2007
 */ 
int sameDouble( double t1, double t2) {
  
  int i,j,k,m, rank;
 
  double bigger;
  double smaller;
  
  if ( t1 > 0 ) { // positive value: establish squeeze
     bigger =  t1*1.01;
     smaller = t1*0.99;	      
  }
  else {
      bigger =  t1*0.99;
      smaller =  t1*1.01;
   }
	  
   if ( t2 > bigger || t2 < smaller ){
	    printf("%f squeezes [ %f to %f ], against %f and fails\n",
		   t1,smaller,bigger,  t2 );
	    return 0;
   }

	
  return 1; // they are the same within  0.01
}

int main() {
	sameDouble( -9.999, -9.111);
	sameDouble( 0.001, 0.00099 );
	return 0;
}