Remove dependency on ocaml-extlib

[virt-top.git] / src / utils.mli

diff --git a/src/utils.mli b/src/utils.mli
index 6e81215..2679dc9 100644 (file)
--- a/src/utils.mli
+++ b/src/utils.mli
@@ -25,6 +25,9 @@ val (//) : string -> string -> string
 (* failwithf is a printf-like version of failwith. *)
 val failwithf : ('a, unit, string, 'b) format4 -> 'a
 
+(* Return the list of integers [a..b] (inclusive). *)
+val range : int -> int -> int list
+
 (* Read a configuration file as a list of (lineno, key, value) pairs.
  * If the config file is missing this returns an empty list.
  *)
@@ -33,6 +36,12 @@ val read_config_file : string -> (int * string * string) list
 (* Pad or truncate a string to a fixed width. *)
 val pad : int -> string -> string
 
+(* Take up to n elements of xs, if available. *)
+val list_take : int -> 'a list -> 'a list
+
+(* Apply function f to [Some v], return default for [None] *)
+val map_default : ('a -> 'b) -> 'b -> 'a option -> 'b
+
 (* Int64 operators for convenience. *)
 val (+^) : int64 -> int64 -> int64
 val (-^) : int64 -> int64 -> int64