portability: fix pointer arithmetic to conform to C standard.

[bison.git] / data / yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index 67e18404508433d57963cd0a71a0ad80aacb4ee6..ed44a4c4e7514bd2b0306a4a5a8a8b2507801e55 100644 (file)
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -1072,7 +1072,7 @@ m4_define([b4_declare_parser_state_variables],
     YYLTYPE *yylsp;
 
     /* The locations where the error started and ended.  */
-    YYLTYPE yyerror_range[2];
+    YYLTYPE yyerror_range[3];
 ]])[
     YYSIZE_T yystacksize;
 ]])
@@ -1533,7 +1533,7 @@ yyerrlab:
 #endif
     }
 
-]b4_locations_if([[  yyerror_range[0] = yylloc;]])[
+]b4_locations_if([[  yyerror_range[1] = yylloc;]])[
 
   if (yyerrstatus == 3)
     {
@@ -1570,7 +1570,7 @@ yyerrorlab:
   if (/*CONSTCOND*/ 0)
      goto yyerrorlab;
 
-]b4_locations_if([[  yyerror_range[0] = yylsp[1-yylen];
+]b4_locations_if([[  yyerror_range[1] = yylsp[1-yylen];
 ]])[  /* Do not reclaim the symbols of the rule which action triggered
      this YYERROR.  */
   YYPOPSTACK (yylen);
@@ -1604,7 +1604,7 @@ yyerrlab1:
       if (yyssp == yyss)
        YYABORT;
 
-]b4_locations_if([[      yyerror_range[0] = *yylsp;]])[
+]b4_locations_if([[      yyerror_range[1] = *yylsp;]])[
       yydestruct ("Error: popping",
                  yystos[yystate], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
       YYPOPSTACK (1);
@@ -1614,10 +1614,10 @@ yyerrlab1:
 
   *++yyvsp = yylval;
 ]b4_locations_if([[
-  yyerror_range[1] = yylloc;
+  yyerror_range[2] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
      the lookahead.  YYLOC is available though.  */
-  YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+  YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
   *++yylsp = yyloc;]])[
 
   /* Shift the error token.  */