doc: mfcalc: demonstrate %printer.

[bison.git] / tests / glr-regression.at

diff --git a/tests/glr-regression.at b/tests/glr-regression.at
index d1d0b878d4916c5b2bb616fb0c8a23849bec021b..0cbffd190e225a734ed6fb3eccdcf27169f18037 100644 (file)
--- a/tests/glr-regression.at
+++ b/tests/glr-regression.at
@@ -298,7 +298,7 @@ static void yyerror(char const * s) {
   fprintf(stderr,"error: %s\n",s);
 }
 
-FILE *input = NULL;
+FILE *input = YY_NULL;
 
 int P[] = { P1, P2 };
 int O[] = { O1, O2 };