Warn about unused values.

[bison.git] / tests / actions.at

diff --git a/tests/actions.at b/tests/actions.at
index 3b4d05d5cbb387a8c3d5749141006beda112d236..33b9a4f7c3dac2727fd4160f63db5df86a04f0e5 100644 (file)
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -98,6 +98,7 @@ AT_DATA_GRAMMAR([[input.y]],
   static int yylex (void);
 # define YYDEBUG         1
 # define YYERROR_VERBOSE 1
+# define USE(Var)
 %}
 
 %union
@@ -112,6 +113,7 @@ AT_DATA_GRAMMAR([[input.y]],
 exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
      sum_of_the_five_previous_values
     {
+       USE (($1, $2, $5));
        printf ("%d\n", $6);
     }
 ;