let output_matirx m = output_value stdout m
let input_matrix () = input_value stdin

But no compatible with c++ files :-P

Khamenia, Valery wrote:

>Hi OCaMLers,
>
>  here goes my usual way to input ASCII matrices from file in C++:
>
>//  -------  start of fragment -----------
>#include <iostream>
>#include <vector>
>using namespace std;
>
>void input_matrix(vector<vector<double > >&vec) {
>  int m, n;
>  cin >> m;
>  cin >> n;
>  vec.resize (m);
>  for( int i = 0; i<m; i++)
>    vec[i].resize(n);
>  for( int i = 0; i<m; i++)
>    for( int j = 0; j<n; j++) 
>      cin >> vec[i][j]; 
>}
>//  -------- end of fragment -------------
>
>then for matrix :
>
>  3
>  3
>  1 2 3 
>  4 5 6
>  7 8 9
>
>stored in ASCII text file mymatrix.dat
>
>i just run my program:
>
> % myprogram < mymatrix.dat
>
>and it is done.
>
>Thus, the few lines of code and i can apply all math I need. 
>
>Is there any similar ascetic way in OCaML for 
>doing the same?
>
>Thanks a priori,
>kind regards,
>Valery A.Khamenya
>

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