C Programming - Command Line Arguments

In Turbo C/C++ under DOS if we want that any wild card characters in the command-line arguments should be appropriately expanded, are we required to make any special provision?

If the different command line arguments are supplied at different times would the output of the following program change?

#include<stdio.h>

int main(int argc, char **argv)
{
    printf("%d\n", argv[argc]);
    return 0;
}

Does there exist any way to make the command-line arguments available to other functions without passing them as arguments to the function?