X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/70986d84bc674b0fbd9a4dcf5ee192e2cec364bf..544b863511c3cb996d05ccabdbf6be92b36c9b68:/data/lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 4179deaf..99b8e9e8 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -157,6 +157,8 @@ dnl FIXME: This is wrong, we want computed header guards.
 b4_variant_define
 b4_namespace_close])[
 
+]b4_null_define[
+
 /* Enabling traces.  */
 #ifndef YYDEBUG
 # define YYDEBUG ]b4_parse_trace_if([1], [0])[
@@ -713,7 +715,7 @@ m4_popdef([b4_at_dollar])])dnl
        location values to have been already stored, initialize these
        stacks with a primary value.  */
     yystack_ = stack_type (0);
-    yypush_ (0, 0, yyla);
+    yypush_ (YY_NULL, 0, yyla);
 
     // A new symbol was pushed on the stack.
   yynewstate:
@@ -851,14 +853,14 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
       // in the debug trace, it's possibly junk.  Hence yymsg = 0.
       // Besides, that keeps exactly the same traces as with the other
       // Bison skeletons.
-      yy_destroy_ (0, yystack_[i]);]])[
+      yy_destroy_ (YY_NULL, yystack_[i]);]])[
 
     yypop_ (yylen);
     yylen = 0;
     YY_STACK_PRINT ();
 
     /* Shift the result of the reduction.  */
-    yypush_ (0, yylhs);
+    yypush_ (YY_NULL, yylhs);
     goto yynewstate;
 
   /*--------------------------------------.
@@ -1056,7 +1058,7 @@ b4_error_verbose_if([state_type yystate, int yytoken],
           }
       }
 
-    char const* yyformat = 0;
+    char const* yyformat = YY_NULL;
     switch (yycount)
       {
 #define YYCASE_(N, S)                         \