:* I need your help with warning guys i fixed one of them however, the warnings about conversion from 'int' to 'char', possible loss of data are because of (str[*strOffset+*curPosition] = key;)<-this line.I would appreciate is anyone can comes up with an idea to solve it.:* About rest of the warnings I found this link which somewhat explains the problem.:* http://stackoverflow.com/questions/4001736/what-with-the-thousands-of-warnings-in-standard-headers-in-msvc-wall