* [Caml-list] Buffer.add error
@ 2003-01-08 9:53 Mikkel Christiansen
2003-01-08 10:08 ` Basile STARYNKEVITCH
0 siblings, 1 reply; 4+ messages in thread
From: Mikkel Christiansen @ 2003-01-08 9:53 UTC (permalink / raw)
To: caml-list
Hi
I'm having trouble with the buffer library in ocaml (version 3.06 -
debian). Program
was compiled to native using ocamlopt.
When generating a rather large string I get the following error:
Fatal error: exception Failure("Buffer.add: cannot grow buffer")
Is there any way to avoid this (except writing directly to a file)?
Thanks
-Mikkel
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* [Caml-list] Buffer.add error
2003-01-08 9:53 [Caml-list] Buffer.add error Mikkel Christiansen
@ 2003-01-08 10:08 ` Basile STARYNKEVITCH
2003-01-08 17:02 ` Eric C. Cooper
0 siblings, 1 reply; 4+ messages in thread
From: Basile STARYNKEVITCH @ 2003-01-08 10:08 UTC (permalink / raw)
To: Mikkel Christiansen; +Cc: caml-list
>>>>> "Mikkel" == Mikkel Christiansen <mixxel@cs.auc.dk> writes:
Mikkel> Hi I'm having trouble with the buffer library in ocaml
Mikkel> (version 3.06 - debian). Program was compiled to native
Mikkel> using ocamlopt.
Mikkel> When generating a rather large string I get the following
Mikkel> error:
Mikkel> Fatal error: exception Failure("Buffer.add: cannot
Mikkel> grow buffer")
Mikkel> Is there any way to avoid this (except writing directly to
Mikkel> a file)?
I suggest looking into the sources. In ocaml/stdlib/buffer.ml you can
read (near line 43)
if b.position + more <= Sys.max_string_length
then new_len := Sys.max_string_length
else failwith "Buffer.add: cannot grow buffer"
So basically, you are hitting the limits of maximal string size (which
is 2^24 = 16777216 on 32 bits plateform).
Hence you cannot avoid it, except by switching to a 64 bits plateform.
You might change your algorithms - perhaps by keeping in memory a
vector of buffers or lines or paragraphs (whatever these are in your
application).
--
Basile STARYNKEVITCH http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net
alias: basile<at>tunes<dot>org
8, rue de la Faïencerie, 92340 Bourg La Reine, France
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2003-01-08 9:53 [Caml-list] Buffer.add error Mikkel Christiansen
2003-01-08 10:08 ` Basile STARYNKEVITCH
2003-01-08 17:02 ` Eric C. Cooper
2003-01-09 20:34 ` Xavier Leroy
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