Data Clustering in C++

Listings 425

53 return 1+k;

54 }

55 }

56

57 for (Size k=0; k < n ; k++) {

58 iL(k,k) = 1 / L(k,k);

59

60 for (Size j=k+1; j<n; ++j){

61 iL(j , k) = − inner prod (

62 project(row(L, j ) , range(k, j )) ,

63 project(column(iL , k), range(k, j )) )

64 /L(j,j);

65 }

66 }

67

68 return 0;

69 }

70

71 }

B.8.10 Null Types

Listing B.105: The header file of null types.

1 // cl / u t i l i t i e s / n u l l . hpp

2 #ifndef CLUSLIB NULL HPP

3 #d e f i n e CLUSLIB NULL HPP

4

5 #include<c l / types . hpp>

6

7 namespace ClusLib {

8

9 template <class Type>

10 class Null ;

11

12 templa te <>

13 class Null<Integer> {

14 public :

15 Null () {}

16 operator Integer () con st {

17 return I n t e g e