This document discusses default arguments in functions. It explains that if not enough parameters are passed to a function call, the rightmost parameters will take on their default values as specified in the function prototype. Default values can be constants, global variables, or function calls. The function prototype sets the default values, so a function call with fewer than all parameters will use the defaults for the omitted rightmost parameters. Examples are given of calling a function with 1, 2, or all 3 parameters, with the rightmost omitted parameters taking the default values specified in the prototype.

1. DEFAULT ARGUMETNS Lecture 2.2
Prepared by: Mian Saeed Akbar

2. Default Arguments
Function call with omitted parameters
 If not enough parameters, rightmost go to their defaults
 Default values
 Can be constants, global variables, or function calls
Set defaults in function prototype
x = 3, y and z get defaults (rightmost)
x = 3, y = 5 and z gets default
int myFunction( int x = 1, int y = 2, int z = 3 );
myFunction( 3 );
myFunction( 3, 5 );

3. Thank you
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