Addition of ikprintf as suggested in FR#0004859.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@9327 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

4 files changed, 12 insertions, 6 deletions

diff --git a/boot/ocamlc b/boot/ocamlc
index c34966db08..78172cc8ec 100755
--- a/boot/ocamlc
+++ b/boot/ocamlc
diff --git a/boot/ocamldep b/boot/ocamldep
index fdc3739751..b7d008cb5f 100755
--- a/boot/ocamldep
+++ b/boot/ocamldep
diff --git a/stdlib/format.ml b/stdlib/format.ml
index 1fcc96995a..37c6af8fa6 100644
--- a/stdlib/format.ml
+++ b/stdlib/format.ml
@@ -1077,8 +1077,8 @@ let implode_rev s0 = function
 (* [mkprintf] is the printf-like function generator: given the
    - [to_s] flag that tells if we are printing into a string,
    - the [get_out] function that has to be called to get a [ppf] function to
-   output onto.
-   It generates a [kprintf] function that takes as arguments a [k]
+     output onto,
+   it generates a [kprintf] function that takes as arguments a [k]
    continuation function to be called at the end of formatting,
    and a printing format string to print the rest of the arguments
    according to the format string.
@@ -1313,6 +1313,7 @@ let mkprintf to_s get_out =
 
 let kfprintf k ppf = mkprintf false (fun _ -> ppf) k;;
 let ifprintf ppf = Tformat.kapr (fun _ -> Obj.magic ignore);;
+let ikfprintf k ppf = Tformat.kapr (fun _ _ -> Obj.magic (k ppf));;
 
 let fprintf ppf = kfprintf ignore ppf;;
 let printf fmt = fprintf std_formatter fmt;;
diff --git a/stdlib/format.mli b/stdlib/format.mli
index bab557f8b3..1d4088ad67 100644
--- a/stdlib/format.mli
+++ b/stdlib/format.mli
@@ -640,16 +640,16 @@ val fprintf : out_channel -> ('a, out_channel, unit) format -> 'a;;
    It prints [x = 1] within a pretty-printing box.
 *)
 
+val ifprintf : out_channel -> ('a, out_channel, unit) format -> 'a;;
+(** Same as [fprintf] above, but does not print anything.
+   Useful to ignore some material when conditionally printing. *)
+
 val printf : ('a, out_channel, unit) format -> 'a;;
 (** Same as [fprintf] above, but output on [std_formatter]. *)
 
 val eprintf : ('a, out_channel, unit) format -> 'a;;
 (** Same as [fprintf] above, but output on [err_formatter]. *)
 
-val ifprintf : out_channel -> ('a, out_channel, unit) format -> 'a;;
-(** Same as [fprintf] above, but does not print anything.
-   Useful to ignore some material when conditionally printing. *)
-
 val sprintf : ('a, unit, string) format -> 'a;;
 (** Same as [printf] above, but instead of printing on a formatter,
    returns a string containing the result of formatting the arguments.
@@ -678,6 +678,11 @@ val kfprintf : (out_channel -> 'a) -> out_channel ->
 (** Same as [fprintf] above, but instead of returning immediately,
    passes the formatter to its first argument at the end of printing. *)
 
+val ikfprintf : (out_channel -> 'a) -> out_channel ->
+              ('b, out_channel, unit, 'a) format4 -> 'b;;
+(** Same as [kfprintf] above, but does not print anything.
+   Useful to ignore some material when conditionally printing. *)
+
 val ksprintf : (string -> 'a) -> ('b, unit, string, 'a) format4 -> 'b;;
 (** Same as [sprintf] above, but instead of returning the string,
    passes it to the first argument. *)