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open Bigarray
let _ =
Gsl_error.init () ;
Random.self_init ()
let print_arr arr =
Array.iter (fun i -> Printf.printf "% 4d " i) arr ;
print_newline ()
let print_barr arr =
for i=0 to pred (Array1.dim arr) do
Printf.printf "% 4d " arr.{i}
done ;
print_newline ()
let _ =
let p = Gsl_permut.make 5 in
Gsl_permut.next p ;
print_string "permut :" ; print_arr (Gsl_permut.to_array p) ;
let a = Array.init 5 (fun _ -> Random.int 10) in
print_string "arr :" ; print_arr a ;
Gsl_permut.permute p a ;
print_string "arr :" ; print_arr a ;
let a1 = Array1.of_array int c_layout a in
print_string "arr1 :" ; print_barr a1 ;
Gsl_permut.permute_barr p a1 ;
print_string "arr1 :" ; print_barr a1
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