C Argv check which argv path came from what input

If i input paths with wildcards as command line parameters, like:
testprogramm a* b*
and the directory contains the following content:
aa ab ba bb
my argv string will contain:
{"testprogramm","aa","ab","ba","bb"}

However, i want to differentiate between files that originated from the first argument (a*) and the second (b*), how do i do that? What i am searching for is a method that can tell me by the example above that "aa" and "ab" came from the first argument and "ba" and "bb" from the second.

I know that the cp.c commands can do this, but i couldn’t figure out how, as the source code is quite nested.

Edit: standard copy (from gnu core utils) cannot differentiate, only embedded (shells, where programm and utils are the same file) can.

>Solution :

./program a* "|"  b*

And then search the delimiter from your program:

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[])
{
    int group = 0;

    for (int i = 1; i < argc; i++)
    {
        if (strcmp(argv[i], "|") == 0)
        {
            group++;
        }
        else
        {
            printf("group: %d file: %s\n", group, argv[i]);
        }
    }
    return 0;
}

The output is:

group: 0 file: aa
group: 0 file: ab
group: 1 file: ba
group: 1 file: bb