Use the correct error

Jacalz · May 14, 2022 · c8772a4 · c8772a4
1 parent 6247779
commit c8772a4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/parse.go b/parse.go
@@ -108,7 +108,7 @@ func infixToRPN(input string) ([]string, error) {
 		}
 
 		if oper == "(" {
-			return nil, errors.New("mismatched parenthesis")
+			return nil, errMismatchedParenthesis
 		}
 
 		output.Enqueue(oper)