Question related to function overloading with respect to constant functions

[Aman Tripathi]

if there are functions with the same name create overloading error then why this program doesn't throw error and runs smoothly even having the same name at line 8 & 9.

[soumen paul]

Because of the constness. One is declared as constant which can only be called using constant object and another function needs to be called using non-const object.