Call by Reference and Call by Value
Call by Value and Call by Reference are two ways of passing parameters to a function. Call by Reference -> modifies the passed value in the main function or the calling function -> actual arguments are passed to function -> can be done using pointers or references Call by Value -> does not modify value in the main function -> copy of arguments is passed to function Example, void modref( int & x ) { x = 0; } // call by reference using reference void modp (int * x ) { *x = 1; } // call by reference using pointer void nomod (int x ) { x = 30; } // call by value ...