/* Line.c 
  2-D line
*/

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>

#include "Point.h"

struct line {
  Point start, end;
  };

#define EPS  1.0e-8
#define ABS(x)  (((x)>=0.0)?(x):(-(x)))

#include "Line.h"

Line ConsLine( Point start, Point end ) {
  Line l;
  l = malloc( sizeof( struct line ) );
  if ( l != NULL ) {
    l->start = CopyPoint( start );
    l->end = CopyPoint( end );
    }
  return l;
  }

void DeleteLine( Line l ) {
  assert( l != NULL );
	/* Call point destructors */
	DeletePoint( l->start );
	DeletePoint( l->end );
  free( l );
  }

Point StartPoint( Line l ) {
  assert( l != NULL );
  return l->start;
  }

Point EndPoint( Line l ) {
  assert( l != NULL );
  return l->end;
  }