617: Mainline

When you define a function that takes a variable number of arguments, you generally provide the following instructions to the C compiler:

• You inform the C compiler that a function is to take a variable number of arguments.
• You use a C mechanism that establishes where argument values are located in memory.
• You use a C mechanism that obtains argument values from those locations, and you write statements that assign those argument values to variables.
• You use a C mechanism that performs some clean-up operations.