This is perhaps the smallest program possible that uses argp. It won't do much except give an error messages and exit when there are any arguments, and prints a rather pointless message for ‘--help’.
/* Argp example #1 -- a minimal program using argp */ /* This is (probably) the smallest possible program that uses argp. It won't do much except give an error messages and exit when there are any arguments, and print a (rather pointless) messages for --help. */ #include <argp.h> int main (int argc, char **argv) { argp_parse (0, argc, argv, 0, 0, 0); exit (0); }