error: expected `*` or `+` | |
--> $DIR/macro-at-most-once-rep-2015-ques-rep.rs:16:10 | |
| | |
LL | ($(a)?) => {} //~ERROR expected `*` or `+` | |
| ^ | |
| | |
= note: `?` is not a macro repetition operator | |
error: expected `*` or `+` | |
--> $DIR/macro-at-most-once-rep-2015-ques-rep.rs:20:11 | |
| | |
LL | ($(a),?) => {} //~ERROR expected `*` or `+` | |
| ^ | |
| | |
= note: `?` is not a macro repetition operator | |
error: aborting due to 2 previous errors | |