I've developed a small scripting interpretor to prove myself (it's very simple but may be useful). I've wrote it in ANSY-C in GNU/Linux and it runs the test scripts perfectly. The simplest script is a "Hello, world!" and the most complex is a "Guess the number" game. If there's an error in the script, the interpretor throws its state in a text file (stacks, variables, execution point, etc.).

The problem comes when I try to run it in WindowsXP. It compiles the interpretor without errors nor warnings (I'm using the "-Wall" flag) but it has a very strange behavior:

• The "Hello, world!" script doesn't shows anything: no screen output

• The "Guess the number" script runs(?) but allows only 9 iterations!

• When there's an error in the script the interpretor doesn't create the stat file.

• If I set the interpretor's stack size up to 1000 elements it doesn't run any script!

The interpretor is simple, but all internals and documentation are written in Spanish. I've tried to isolate the problem, but when I run the modules separately it seems to run perfectly, and I can't isolate the interpretor itself. I've attached the latest "stable but under development" version of the project, but remember: all the documentation and internals are written in Spanish. I'm using MinGW32 3.4.2 and MSys 1.0.11.

Anybody else wrote an ANSI/POSIX C program that runs in GNU/Linux but doesn't in Windows? Does anyone knows why? Does anyone knows how to fix it?

I did it, using "rb", "at" and "wt" and all the scripts are in DOS format and still not working.

Another thing: I'm using "stderr" to show the error messages. May be Windows override "stderr" and then I can't see the error messages

[edit]I've changed all "stderr" by "stdout" and everything is the same...

OMG! I've changed the "rb" by "rt" and it said there's an error loading the scripts that doesn't work! But I see the code is right, doesn't it? I've translated the comments to english:

Curiously there's a script that is loaded and run perfectly

[edit]I think there's a problem with the way I calculate the size of the file... When I use "rb" it gets the correct size, when I use "rt" it doesn't.

I did created them in Linux, but I want to make it cross platform. That's was I used "rb" to load the scripts. The interpretor just skip the '\n' and '\r' characters as spaces.

[edit]That's really strange: I've added this line
printf ("%s", ""); fflush (stdout);
just after the initialization and used the "-pg" option (inspired by Dev-C++) and all works perfectly! Why?

[edit2] Forget it: after reboot Windows the magic disappears... I think my program overwrites the system kernel or something, because after run the executable compiled without the "-pg" flag, recompile it with the "-pg" flag, then I can run the "Guess the number" script. I'm sure it's a bug from GCC or Windows, but who knows?