Function set_join_field

src/join.c:952–959

   more than once to incompatible values.  */

static void
set_join_field (ptrdiff_t *var, idx_t val)
{
  if (0 <= *var && *var != val)
    error (EXIT_FAILURE, 0,
           _("incompatible join fields %td, %td"), *var, val);
  *var = val;
}

/* Status of command-line arguments.  */