fix bugs and format code for some compile.

[Doawen]

[scaprile]

Try to provide a description on why you are doing what you are doing. What you describe as "some linux platforms don't support char >= 128" is "some users don't tell the compiler whether they want char to be signed by default or not", which is not strictly defined on pre C99 (iirc). If you need specific changes for your compiler, those are not bugs, they are specific changes for your compiler and should be handled as such. You may propose those if you like, though it is likely that you'll have to handle them separately. If you've found a real problem, please describe it thoroughly and submit a specific issue for that specific problem so it can be reviewed.