+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: cardfile [options] file"
+ ,""
+ ,"Options:"
+ ," -c use color if terminal supports it"
+ };
+ size_t n;
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+ ExitProgram(EXIT_FAILURE);
+}
+