########### CODE SOURCE avec COMMENTAIRES DE DEBUG #####################

    main()
    {
       SqrMatrix m1(3,3);
       cout << m1 << endl;

*** debug : Matrix (3,3) constructed ; instances: 1
 --- MemBlk debug : constructed [36]
 --- MemBlk debug : allocated, refs = 1, blocks: 1

1	2	3
4	5	6
7	8	0

       SqrMatrix m2 = m1, m3(3,3);

*** debug : Matrix (3,3) constructed ; instances: 2
 --- MemBlk debug : copy-constructed, refs = 2
*** debug : Matrix (3,3) constructed ; instances: 3
 --- MemBlk debug : constructed [36]
 --- MemBlk debug : allocated, refs = 1, blocks: 2

       m3 = 2 * m1 + 2 * -m2;

*** debug : Matrix (3,3) constructed ; instances: 4
 --- MemBlk debug : constructed [36]
 --- MemBlk debug : allocated, refs = 1, blocks: 3

*** debug : Matrix (3,3) constructed ; instances: 5
 --- MemBlk debug : copy-constructed, refs = 2

 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 4

*** debug : Matrix (3,3) constructed ; instances: 5
 --- MemBlk debug : copy-constructed, refs = 2

*** debug : Matrix (3,3) touched
 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : allocated, refs = 1, blocks: 4
 --- MemBlk debug : cloned

*** debug : Matrix (3,3) constructed ; instances: 6
 --- MemBlk debug : copy-constructed, refs = 2

 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 5

*** debug : Matrix (3,3) constructed ; instances: 6
 --- MemBlk debug : copy-constructed, refs = 3

*** debug : Matrix (3,3) touched
 --- MemBlk debug : freed, refs = 2
 --- MemBlk debug : allocated, refs = 1, blocks: 5
 --- MemBlk debug : cloned

*** debug : Matrix (3,3) constructed ; instances: 7
 --- MemBlk debug : copy-constructed, refs = 2

 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 6

*** debug : Matrix (3,3) constructed ; instances: 7
 --- MemBlk debug : copy-constructed, refs = 2

*** debug : Matrix (3,3) touched
 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : allocated, refs = 1, blocks: 6
 --- MemBlk debug : cloned

*** debug : Matrix (3,3) constructed ; instances: 8
 --- MemBlk debug : copy-constructed, refs = 2

 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 7

 --- MemBlk debug : freed, blocks: 5
 --- MemBlk debug : copied, refs = 2

       cout << m3 << endl;

0	0	0
0	0	0
0	0	0

       return 0;
    }

 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 6
 --- MemBlk debug : freed, blocks: 4
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 5
 --- MemBlk debug : freed, blocks: 3
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 4
 --- MemBlk debug : freed, blocks: 2
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 3
 --- MemBlk debug : freed, blocks: 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 2
 --- MemBlk debug : freed, refs = 1
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 1
 --- MemBlk debug : freed, blocks: 0
 --- MemBlk debug : destroyed [36]
*** debug : Matrix (3,3) deleted ; instances: 0