0002942: Re: [Caml-list] kprintf with user formatters

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0002942

OCaml

OCaml general

public

2004-07-15 14:19

2012-01-30 15:15

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administrator

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Priority

normal

Severity

feature

Reproducibility

always

Status

closed

Resolution

fixed

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Fixed in Version

3.10.0

Summary

0002942: Re: [Caml-list] kprintf with user formatters

Description

On Thu, 15 Jul 2004, Damien wrote:
> I had the same problem a month ago,
> I ended with the following ugly function:
>
> let log b fmt =
> if b then Printf.printf fmt
> else
> let rec f x = Obj.magic f in
> f fmt
> (* val f: bool -> ('a, out_channel, unit) format -> 'a *)
>
> (I think this is safe since f just eats its arguments,
> and gets typed with "-rectypes" : ('b->'a) as 'a)
>
> maybe a function "zprintf" could be added to Printf and Format to do
> this job ?

Thanks for the hint, this works for me! I also think that there should be
some kind of "zprintf"-function in the standard library. Forcing people
to use "-rectypes" or "Obj.magic" is evil.

Regards,
Markus

--
Markus Mottl http://www.oefai.at/~markus [^] markus@oefai.at

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Notes
(0006840) doligez (manager) 2012-01-30 15:15	This is available since 3.10.0 as Printf.ifprintf (typed like fprintf but ignores all its arguments).

Issue History
Date Modified	Username	Field	Change
2005-11-18 10:13	administrator	New Issue
2012-01-30 15:15	doligez	Note Added: 0006840
2012-01-30 15:15	doligez	Status	acknowledged => closed
2012-01-30 15:15	doligez	Resolution	open => fixed
2012-01-30 15:15	doligez	Fixed in Version	=> 3.10.0
2012-01-30 15:15	doligez	Description Updated	View Revisions