va_list is an array that holds information needed by va_arg and va_end

More Questions from Variable Number of Arguments

• The macro va_arg is used to extract an argument from the variable argument list and advance the pointer to the next argument.
• A function that receives variable number of arguments should use va_arg() to extract arguments from the variable argument list.
• For a function receives variable number of arguments it is necessary that the function should receive at least one fixed argument.
• In a function that receives variable number of arguments the fixed arguments passed to the function can be at the end of argument list.
• It is necessary to call the macro va_end if va_start is called in the function.
• Can we pass a variable argument list to a function at run-time?
• While defining a variable argument list function we drop the ellipsis(...)?
• Can we write a function that takes a variable argument list and passes the list to another function?
• Can the fixed arguments passed to the function that accepts variable argument list, occur at the end?
• Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?

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