Re: [Doxygen-users] Error: Input buffer overflow

[Larry M. <lar...@gm...>]

On 8/10/07, Miguel Guedes <mig...@gm...> wrote:
> Hello,
>
> I'm trying to document a large C++ project composed of a monstrous
> number of entities and am getting the following error: "input buffer
> overflow, can't enlarge buffer because scanner uses REJECT"
>
> This error occurs while Doxygen is parsing and preprocessing the headers.
>
> How can I increase this "input buffer"?

>From the FAQ:

13. Help! I get the cryptic message "input buffer overflow, can't
enlarge buffer because scanner uses REJECT"

This error happens when doxygen's lexical scanner has a rule that
matches more than 256K of input characters in one go. I've seen this
happening on a very large generated file (>256K lines), where the
built-in preprocessor converted it into an empty file (with >256K of
newlines). Another case where this might happen is if you have lines
in your code with more than 256K characters.

If you have run into such a case and want me to fix it, you should
send me a code fragment that triggers the message. To work around the
problem, put some line-breaks into your file, split it up into smaller
parts, or exclude it from the input using EXCLUDE.