7.6.29 WHICH_OPT_name - Which Equivalenced Option

This macro gets emitted only for equivalenced-to options. It is used to obtain the value code for the one of the several equivalence class members set the equivalenced-to option.

switch (WHICH_OPT_OTHER_OPT) {
case VALUE_OPT_NAME:
    this-option-was-really-opt-name;
case VALUE_OPT_OTHER_OPT:
    this-option-was-really-other-opt;
}