The macro va_arg is used to extract an argument from the fixed micro argument list and advance the pointer to the next argument.

It is necessary to call the macro va_end if va_start is called in the function.

Can the fixed arguments passed to the function that accepts variable argument list, occur at the end?

Can we write a function that takes a variable argument list and passes the list to another function?

Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?