Hi, The function lltostr/ulltostr is available in Solaris. I found that this function is not present in stdlib.h in Linux. Is there an equivalent of this function in Linux? Please do let me know whether there is an alternative for it. Regards, Anuradha The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com