I have to read integers from a "file.txt" in OCaml and store them in a list. I have tried to read with stdlib but it does not work. Also I cannot understand how scanf works for files. If someone could help me with scanf i would be grateful.
EditSorry for not being clear enough, first time posting. The input format is a b c\nd e f\n...Yes it is for my university. Basically i have to find mst of a graph. The input is vertex_1 vertex_2 weight \n and so on and i am trying to build a list of tuples [(vertex_1 vertex_2 weight),...] from input. In my code i am trying to gather chars to a string if its needed (ex two digit numbers) and then converting string to int. But i hope there is an easier way of doing that. I have to say that is the second day that i am programming in ocaml.
let entry_of_channel ch = let number = input_char ch in numberlet rec list_of_channel ch = try let e = entry_of_channel ch in e:: list_of_channel ch with End_of_file -> []let string_of_chars chars = let buf = Buffer.create 16 in List.iter (Buffer.add_char buf) charslet rec list_clear list buffer = match list with [] -> [] | ''::t -> (string_of_chars buffer)::list_clear t [] | '\n'::t -> (string_of_chars buffer)::list_clear t [] | h::t -> buffer @ h; list_clear t bufferlet graph filename = let ch = open_in filename in let l = list_of_channel ch in close_in ch; let l_new = list_clear l [] in l_new