Verifica cu atentie fisierele finale. E posibil ca out_02_null.txt si out_02.txt sa iti fie inversate. Daca expresia aia lunga se evalueaza la false -> apar probleme. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://cursuri.cs.pub.ro/pipermail/so/attachments/20120309/d258be9c/attachment.html>