* scanf %n may return 1 too much?
@ 2006-03-29 9:50 Hendrik Tews
2006-03-29 10:03 ` [Caml-list] " Michael Wohlwend
0 siblings, 1 reply; 2+ messages in thread
From: Hendrik Tews @ 2006-03-29 9:50 UTC (permalink / raw)
To: caml-list
Dear all,
is the following really the intented behaviour?
# Scanf.sscanf " a" " %n" (fun n -> n);;
- : int = 2
# Scanf.sscanf " a" " a%n" (fun n -> n);;
- : int = 2
In the first one only one character is consumed, it should IMO
return 1. The second one consumes one character more than the
first one. So it should return one more than the first one.
How can I scan _precisely_ one space without the look ahead
behavior that the format " " apparently has? I guessed "% ", but
that raises an exception.
Bye,
Hendrik
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Caml-list] scanf %n may return 1 too much?
2006-03-29 9:50 scanf %n may return 1 too much? Hendrik Tews
@ 2006-03-29 10:03 ` Michael Wohlwend
0 siblings, 0 replies; 2+ messages in thread
From: Michael Wohlwend @ 2006-03-29 10:03 UTC (permalink / raw)
To: caml-list
On Wednesday 29 March 2006 11:50, Hendrik Tews wrote:
>
> How can I scan _precisely_ one space without the look ahead
> behavior that the format " " apparently has? I guessed "% ", but
> that raises an exception.
sscanf " a" "%1[ ]%n" (fun s n -> n);;
scans only one space...
Michael
^ permalink raw reply [flat|nested] 2+ messages in thread
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