Re: [Caml-list] Format question

[Alessandro Baretta <alex@baretta.com>]

Oleg wrote:
> Oleg wrote: 
> 
> 
>>Is it possible to define a printf that automatically flushes stdout?
>>
> 
> 
> I figured it out:
> 
> let my_printf (x : ('a, out_channel, unit) format) = 
>    let tmp = Printf.printf x in flush stdout; tmp;;
> 
> Oleg

I don't think this does what you want it to. This functions 
starts to parse the format string and prints it until the 
first conversion specifier, where it stops. Then it flushes 
stdout and returns a closure which will perform the 
specified conversion. When the function is then invoked on 
the actual parameters of the conversion, stdout is no longer 
flushed.

Basically, this works only if what you're printing is just 
constant strings. But then you're probably better off with

let my_printf x = print_string x; flush stdout

Alex

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