ques..!!!

[wildcat]

what is the difference between islower() and tolower()?

[Hippogriff]

http://www.cplusplus.com/reference/clibrary/cctype/islower/
Checks if a letter is lowercase (doesn't do anything with it besides that).

http://www.cplusplus.com/reference/clibrary/cctype/tolower/
Converts letters passed into it to lowercase when possible.

[wildcat]

thnx a lot..!!