TEST with user callback
display Tyrion
a value 125.580000 and another one 5684
now array data
int data: 5
int data: 8
int data: -159
int data: 68
int data: 156

int data: 2.000000
int data: 598.100000
int data: 14.890000
int data: 144.117000
int data: 0.215000
int data: -159.178000
int data: 0.000000
int data: 157.000000
int data: 0.129840
int data: 159618.190000

int data: good
int data: bad
int data: ugly

-- end test --