package: bump to 2015

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

diff --git a/tests/glr-regression.at b/tests/glr-regression.at
index a826a5e30df7b5d3f96c1989c023dc3c87add51f..71f6e6d56fd7caf22a6d06a74385c27182b6974f 100644 (file)
--- a/tests/glr-regression.at
+++ b/tests/glr-regression.at
@@ -1,6 +1,6 @@
 # Checking GLR Parsing: Regression Tests           -*- Autotest -*-
 
 # Checking GLR Parsing: Regression Tests           -*- Autotest -*-
 

-# Copyright (C) 2002-2003, 2005-2007, 2009-2012 Free Software
+# Copyright (C) 2002-2003, 2005-2007, 2009-2015 Free Software

 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify


@@ -18,9 +18,9 @@
 
 AT_BANNER([[GLR Regression Tests]])
 
 
 AT_BANNER([[GLR Regression Tests]])
 

-## --------------------------- ##
-## Badly Collapsed GLR States. ##
-## --------------------------- ##
+## ---------------------------- ##
+## Badly Collapsed GLR States.  ##
+## ---------------------------- ##

 
 AT_SETUP([Badly Collapsed GLR States])
 
 
 AT_SETUP([Badly Collapsed GLR States])
 


@@ -67,7 +67,7 @@ static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1)
   return 0;
 }
 
   return 0;
 }
 

-const char *input = NULL;
+const char *input = YY_NULLPTR;

 
 int
 main (int argc, const char* argv[])
 
 int
 main (int argc, const char* argv[])


@@ -105,9 +105,9 @@ E -> E 'P' E
 
 AT_CLEANUP
 
 
 AT_CLEANUP
 

-## ------------------------------------------------------------ ##
-## Improper handling of embedded actions and $-N in GLR parsers ##
-## ------------------------------------------------------------ ##
+## -------------------------------------------------------------- ##
+## Improper handling of embedded actions and $-N in GLR parsers.  ##
+## -------------------------------------------------------------- ##

 
 AT_SETUP([Improper handling of embedded actions and dollar(-N) in GLR parsers])
 
 
 AT_SETUP([Improper handling of embedded actions and dollar(-N) in GLR parsers])
 


@@ -195,10 +195,11 @@ yylex (void)
 int
 main (int argc, char **argv)
 {
 int
 main (int argc, char **argv)
 {

+  int res;

   input = stdin;
   if (argc == 2 && !(input = fopen (argv[1], "r")))
     return 3;
   input = stdin;
   if (argc == 2 && !(input = fopen (argv[1], "r")))
     return 3;

-  int res = yyparse ();
+  res = yyparse ();

   if (argc == 2 && fclose (input))
     return 4;
   return res;
   if (argc == 2 && fclose (input))
     return 4;
   return res;


@@ -236,9 +237,9 @@ AT_PARSER_CHECK([[./glr-regr2a input3.txt]], 0,
 
 AT_CLEANUP
 
 
 AT_CLEANUP
 

-## ------------------------------------------------------------ ##
-## Improper merging of GLR delayed action sets                  ##
-## ------------------------------------------------------------ ##
+## --------------------------------------------- ##
+## Improper merging of GLR delayed action sets.  ##
+## --------------------------------------------- ##

 
 AT_SETUP([Improper merging of GLR delayed action sets])
 
 
 AT_SETUP([Improper merging of GLR delayed action sets])
 


@@ -303,7 +304,7 @@ MergeRule (int x0, int x1)
 }
 ]AT_YYERROR_DEFINE[
 
 }
 ]AT_YYERROR_DEFINE[
 

-FILE *input = YY_NULL;
+FILE *input = YY_NULLPTR;

 
 int P[] = { P1, P2 };
 int O[] = { O1, O2 };
 
 int P[] = { P1, P2 };
 int O[] = { O1, O2 };


@@ -325,12 +326,13 @@ int yylex (void)
 }
 
 int
 }
 
 int

-main(int argc, char* argv[])
+main (int argc, char* argv[])

 {
 {

+  int res;

   input = stdin;
   if (argc == 2 && !(input = fopen (argv[1], "r")))
     return 3;
   input = stdin;
   if (argc == 2 && !(input = fopen (argv[1], "r")))
     return 3;

-  int res = yyparse ();
+  res = yyparse ();

   if (argc == 2 && fclose (input))
     return 4;
   return res;
   if (argc == 2 && fclose (input))
     return 4;
   return res;


@@ -355,10 +357,10 @@ AT_PARSER_CHECK([[./glr-regr3 input.txt]],
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Duplicate representation of merged trees.  See                           ##
-## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.     ##
-## ------------------------------------------------------------------------- ##
+## ---------------------------------------------------------------------- ##
+## Duplicate representation of merged trees.  See                         ##
+## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.  ##
+## ---------------------------------------------------------------------- ##

 
 AT_SETUP([Duplicate representation of merged trees])
 
 
 AT_SETUP([Duplicate representation of merged trees])
 


@@ -446,10 +448,10 @@ AT_PARSER_CHECK([[./glr-regr4]], 0,
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## -------------------------------------------------------------------------- ##
-## User destructor for unresolved GLR semantic value.  See                   ##
-## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html>.   ##
-## -------------------------------------------------------------------------- ##
+## ------------------------------------------------------------------------- ##
+## User destructor for unresolved GLR semantic value.  See                   ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html>.  ##
+## ------------------------------------------------------------------------- ##

 
 AT_SETUP([User destructor for unresolved GLR semantic value])
 
 
 AT_SETUP([User destructor for unresolved GLR semantic value])
 


@@ -484,13 +486,9 @@ start:
    ;
 
 %%
    ;
 
 %%

-]AT_YYLEX_DEFINE(["a"])[

 ]AT_YYERROR_DEFINE[
 ]AT_YYERROR_DEFINE[

-int
-main (void)
-{
-  return yyparse () != 1;
-}
+]AT_YYLEX_DEFINE(["a"])[
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -499,17 +497,17 @@ AT_BISON_CHECK([[-o glr-regr5.c glr-regr5.y]], 0, [],
 ]])
 AT_COMPILE([glr-regr5])
 
 ]])
 AT_COMPILE([glr-regr5])
 

-AT_PARSER_CHECK([[./glr-regr5]], 0, [],
+AT_PARSER_CHECK([[./glr-regr5]], 1, [],

 [syntax is ambiguous
 ])
 
 AT_CLEANUP
 
 
 [syntax is ambiguous
 ])
 
 AT_CLEANUP
 
 

-## -------------------------------------------------------------------------- ##
-## User destructor after an error during a split parse.  See                 ##
-## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html>.   ##
-## -------------------------------------------------------------------------- ##
+## ------------------------------------------------------------------------- ##
+## User destructor after an error during a split parse.  See                 ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html>.  ##
+## ------------------------------------------------------------------------- ##

 
 AT_SETUP([User destructor after an error during a split parse])
 
 
 AT_SETUP([User destructor after an error during a split parse])
 


@@ -538,11 +536,7 @@ start: 'a' | 'a' ;
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["a"])[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["a"])[

-int
-main (void)
-{
-  return yyparse () != 1;
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -551,7 +545,7 @@ AT_BISON_CHECK([[-o glr-regr6.c glr-regr6.y]], 0, [],
 ]])
 AT_COMPILE([glr-regr6])
 
 ]])
 AT_COMPILE([glr-regr6])
 

-AT_PARSER_CHECK([[./glr-regr6]], 0,
+AT_PARSER_CHECK([[./glr-regr6]], 1,

 [Destructor called.
 ],
 [syntax is ambiguous
 [Destructor called.
 ],
 [syntax is ambiguous


@@ -561,7 +555,7 @@ AT_CLEANUP
 
 
 ## ------------------------------------------------------------------------- ##
 
 
 ## ------------------------------------------------------------------------- ##

-## Duplicated user destructor for lookahead.  See                           ##
+## Duplicated user destructor for lookahead.  See                            ##

 ## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00035.html>.  ##
 ## ------------------------------------------------------------------------- ##
 
 ## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00035.html>.  ##
 ## ------------------------------------------------------------------------- ##
 


@@ -649,7 +643,7 @@ AT_CLEANUP
 
 ## ------------------------------------------------------------------------- ##
 ## Incorrect default location for empty right-hand sides.  Adapted from bug  ##
 
 ## ------------------------------------------------------------------------- ##
 ## Incorrect default location for empty right-hand sides.  Adapted from bug  ##

-## report by Claudia Hermann.                                               ##
+## report by Claudia Hermann.                                                ##

 ## See http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00069.html and ##
 ## http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00072.html         ##
 ## ------------------------------------------------------------------------- ##
 ## See http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00069.html and ##
 ## http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00072.html         ##
 ## ------------------------------------------------------------------------- ##


@@ -675,25 +669,25 @@ AT_DATA_GRAMMAR([glr-regr8.y],
 %%
 
 
 %%
 
 

-PortClause     : T_PORT InterfaceDeclaration T_PORT
-               { printf("%d/%d - %d/%d - %d/%d\n",
-                        @1.first_column, @1.last_column,
-                        @2.first_column, @2.last_column,
-                        @3.first_column, @3.last_column); }
-       ;
+PortClause      : T_PORT InterfaceDeclaration T_PORT
+                { printf("%d/%d - %d/%d - %d/%d\n",
+                         @1.first_column, @1.last_column,
+                         @2.first_column, @2.last_column,
+                         @3.first_column, @3.last_column); }
+        ;

 
 

-InterfaceDeclaration   : OptConstantWord       %dprec 1
-       | OptSignalWord %dprec 2
-       ;
+InterfaceDeclaration    : OptConstantWord       %dprec 1
+        | OptSignalWord %dprec 2
+        ;

 
 

-OptConstantWord        : /* empty */
-       | T_CONSTANT
-       ;
+OptConstantWord : /* empty */
+        | T_CONSTANT
+        ;

 
 

-OptSignalWord  : /* empty */
-               { printf("empty: %d/%d\n", @$.first_column, @$.last_column); }
-       | T_SIGNAL
-       ;
+OptSignalWord   : /* empty */
+                { printf("empty: %d/%d\n", @$.first_column, @$.last_column); }
+        | T_SIGNAL
+        ;

 
 %%
 
 
 %%
 


@@ -720,12 +714,7 @@ int yylex (void)
     }
 }
 
     }
 }
 

-int
-main (void)
-{
-  yyparse();
-  return 0;
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -744,7 +733,7 @@ AT_CLEANUP
 
 
 ## ------------------------------------------------------------------------- ##
 
 
 ## ------------------------------------------------------------------------- ##

-## No users destructors if stack 0 deleted.  See                            ##
+## No users destructors if stack 0 deleted.  See                             ##

 ## <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00109.html>.  ##
 ## ------------------------------------------------------------------------- ##
 
 ## <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00109.html>.  ##
 ## ------------------------------------------------------------------------- ##
 


@@ -821,9 +810,9 @@ AT_PARSER_CHECK([[./glr-regr9]], 0, [],
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Corrupted semantic options if user action cuts parse.                    ##
-## ------------------------------------------------------------------------- ##
+## ------------------------------------------------------ ##
+## Corrupted semantic options if user action cuts parse.  ##
+## ------------------------------------------------------ ##

 
 AT_SETUP([Corrupted semantic options if user action cuts parse])
 
 
 AT_SETUP([Corrupted semantic options if user action cuts parse])
 


@@ -875,9 +864,9 @@ AT_PARSER_CHECK([[./glr-regr10]], 0, [], [])
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Undesirable destructors if user action cuts parse.                       ##
-## ------------------------------------------------------------------------- ##
+## --------------------------------------------------- ##
+## Undesirable destructors if user action cuts parse.  ##
+## --------------------------------------------------- ##

 
 AT_SETUP([Undesirable destructors if user action cuts parse])
 
 
 AT_SETUP([Undesirable destructors if user action cuts parse])
 


@@ -933,9 +922,9 @@ AT_PARSER_CHECK([[./glr-regr11]], 0, [], [])
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Leaked semantic values if user action cuts parse.                        ##
-## ------------------------------------------------------------------------- ##
+## -------------------------------------------------- ##
+## Leaked semantic values if user action cuts parse.  ##
+## -------------------------------------------------- ##

 
 AT_SETUP([Leaked semantic values if user action cuts parse])
 
 
 AT_SETUP([Leaked semantic values if user action cuts parse])
 


@@ -1026,17 +1015,17 @@ main (void)
   int exit_status = yyparse ();
   if (parent_rhs_before_value)
     {
   int exit_status = yyparse ();
   if (parent_rhs_before_value)
     {

-      fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+      fprintf (stderr, "'parent_rhs_before' destructor not called.\n");

       exit_status = 1;
     }
   if (merged_value)
     {
       exit_status = 1;
     }
   if (merged_value)
     {

-      fprintf (stderr, "`merged' destructor not called.\n");
+      fprintf (stderr, "'merged' destructor not called.\n");

       exit_status = 1;
     }
   if (parent_rhs_after_value)
     {
       exit_status = 1;
     }
   if (parent_rhs_after_value)
     {

-      fprintf (stderr, "`PARENT_RHS_AFTER' destructor not called.\n");
+      fprintf (stderr, "'PARENT_RHS_AFTER' destructor not called.\n");

       exit_status = 1;
     }
   return exit_status;
       exit_status = 1;
     }
   return exit_status;


@@ -1056,7 +1045,7 @@ AT_CLEANUP
 
 
 ## ------------------------------------------------------------------------- ##
 
 
 ## ------------------------------------------------------------------------- ##

-## Incorrect lookahead during deterministic GLR.  See                       ##
+## Incorrect lookahead during deterministic GLR.  See                        ##

 ## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00017.html> and  ##
 ## <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00060.html>.  ##
 ## ------------------------------------------------------------------------- ##
 ## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00017.html> and  ##
 ## <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00060.html>.  ##
 ## ------------------------------------------------------------------------- ##


@@ -1144,10 +1133,10 @@ print_lookahead (char const *reduction)
     {
       printf ("'%c', yylval='", yychar);
       if (yylval.value > ' ')
     {
       printf ("'%c', yylval='", yychar);
       if (yylval.value > ' ')

-       printf ("%c", yylval.value);
+        printf ("%c", yylval.value);

       printf ("', yylloc=(%d,%d),(%d,%d)",
       printf ("', yylloc=(%d,%d),(%d,%d)",

-             yylloc.first_line, yylloc.first_column,
-             yylloc.last_line, yylloc.last_column);
+              yylloc.first_line, yylloc.first_column,
+              yylloc.last_line, yylloc.last_column);

     }
   printf ("\n");
 }
     }
   printf ("\n");
 }


@@ -1181,9 +1170,9 @@ start <- defstate_init defstate_shift 'b':
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Incorrect lookahead during nondeterministic GLR.                         ##
-## ------------------------------------------------------------------------- ##
+## ------------------------------------------------- ##
+## Incorrect lookahead during nondeterministic GLR.  ##
+## ------------------------------------------------- ##

 
 AT_SETUP([Incorrect lookahead during nondeterministic GLR])
 
 
 AT_SETUP([Incorrect lookahead during nondeterministic GLR])
 


@@ -1244,7 +1233,7 @@ merge:
   | conflict defstate_look 'a' nonconflict2 'b' defstate_shift %dprec 2 {
     USE ($3); USE ($5);
     print_lookahead ("merge <- conflict defstate_look 'a' nonconflict2 'b'"
   | conflict defstate_look 'a' nonconflict2 'b' defstate_shift %dprec 2 {
     USE ($3); USE ($5);
     print_lookahead ("merge <- conflict defstate_look 'a' nonconflict2 'b'"

-                     " defstate_shift");
+                      " defstate_shift");

   }
   ;
 
   }
   ;
 


@@ -1291,7 +1280,7 @@ alt1:
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {

-       fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+        fprintf (stderr, "Incorrect lookahead during stack explosion.\n");

       }
   }
   ;
       }
   }
   ;


@@ -1300,7 +1289,7 @@ alt2:
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {

-       fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+        fprintf (stderr, "Incorrect lookahead during stack explosion.\n");

       }
   }
   ;
       }
   }
   ;


@@ -1309,7 +1298,7 @@ alt3:
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {
     USE ($1);
     if (yychar != 'd' && yychar != YYEOF)
       {

-       fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+        fprintf (stderr, "Incorrect lookahead during stack explosion.\n");

       }
   }
   ;
       }
   }
   ;


@@ -1317,8 +1306,8 @@ no_look:
   {
     if (yychar != YYEMPTY)
       {
   {
     if (yychar != YYEMPTY)
       {

-       fprintf (stderr,
-                "Found lookahead where shouldn't during stack explosion.\n");
+        fprintf (stderr,
+                 "Found lookahead where shouldn't during stack explosion.\n");

       }
   }
   ;
       }
   }
   ;


@@ -1350,10 +1339,10 @@ print_lookahead (char const *reduction)
     {
       printf ("'%c', yylval='", yychar);
       if (yylval.value > ' ')
     {
       printf ("'%c', yylval='", yychar);
       if (yylval.value > ' ')

-       printf ("%c", yylval.value);
+        printf ("%c", yylval.value);

       printf ("', yylloc=(%d,%d),(%d,%d)",
       printf ("', yylloc=(%d,%d),(%d,%d)",

-             yylloc.first_line, yylloc.first_column,
-             yylloc.last_line, yylloc.last_column);
+              yylloc.first_line, yylloc.first_column,
+              yylloc.last_line, yylloc.last_column);

     }
   printf ("\n");
 }
     }
   printf ("\n");
 }


@@ -1398,9 +1387,9 @@ start <- merge 'c' stack_explosion:
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Leaked semantic values when reporting ambiguity.                         ##
-## ------------------------------------------------------------------------- ##
+## ------------------------------------------------- ##
+## Leaked semantic values when reporting ambiguity.  ##
+## ------------------------------------------------- ##

 
 AT_SETUP([Leaked semantic values when reporting ambiguity])
 
 
 AT_SETUP([Leaked semantic values when reporting ambiguity])
 


@@ -1460,7 +1449,7 @@ main (void)
   int exit_status = yyparse () != 1;
   if (parent_rhs_before_value)
     {
   int exit_status = yyparse () != 1;
   if (parent_rhs_before_value)
     {

-      fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+      fprintf (stderr, "'parent_rhs_before' destructor not called.\n");

       exit_status = 1;
     }
   return exit_status;
       exit_status = 1;
     }
   return exit_status;


@@ -1480,9 +1469,9 @@ AT_PARSER_CHECK([[./glr-regr15]], 0, [],
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Leaked lookahead after nondeterministic parse syntax error.              ##
-## ------------------------------------------------------------------------- ##
+## ------------------------------------------------------------ ##
+## Leaked lookahead after nondeterministic parse syntax error.  ##
+## ------------------------------------------------------------ ##

 
 AT_SETUP([Leaked lookahead after nondeterministic parse syntax error])
 
 
 AT_SETUP([Leaked lookahead after nondeterministic parse syntax error])
 


@@ -1540,9 +1529,9 @@ AT_PARSER_CHECK([[./glr-regr16]], 0, [],
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## ------------------------------------------------------------------------- ##
-## Uninitialized location when reporting ambiguity.                         ##
-## ------------------------------------------------------------------------- ##
+## ------------------------------------------------- ##
+## Uninitialized location when reporting ambiguity.  ##
+## ------------------------------------------------- ##

 
 AT_SETUP([Uninitialized location when reporting ambiguity])
 
 
 AT_SETUP([Uninitialized location when reporting ambiguity])
 


@@ -1598,11 +1587,7 @@ yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
   return input[toknum++];
 }
 
   return input[toknum++];
 }
 

-int
-main (void)
-{
-  return yyparse () != 1;
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -1611,16 +1596,16 @@ AT_BISON_CHECK([[-o glr-regr17.c glr-regr17.y]], 0, [],
 ]])
 AT_COMPILE([glr-regr17])
 
 ]])
 AT_COMPILE([glr-regr17])
 

-AT_PARSER_CHECK([[./glr-regr17]], 0, [],
+AT_PARSER_CHECK([[./glr-regr17]], 1, [],

 [1.1-2.2: syntax is ambiguous
 ])
 
 AT_CLEANUP
 
 
 [1.1-2.2: syntax is ambiguous
 ])
 
 AT_CLEANUP
 
 

-## -------------------------------------------------------------##
-## Missed %merge type warnings when LHS type is declared later. ##
-## -------------------------------------------------------------##
+## ------------------------------------------------------------- ##
+## Missed %merge type warnings when LHS type is declared later.  ##
+## ------------------------------------------------------------- ##

 
 AT_SETUP([Missed %merge type warnings when LHS type is declared later])
 
 
 AT_SETUP([Missed %merge type warnings when LHS type is declared later])
 


@@ -1653,19 +1638,15 @@ sym3: %merge<merge> { $$ = 0; } ;
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE[

-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([[-o glr-regr18.c glr-regr18.y]], 1, [],
 ]])
 AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([[-o glr-regr18.c glr-regr18.y]], 1, [],

-[[glr-regr18.y:26.18-24: error: result type clash on merge function 'merge': <type2> != <type1>
-glr-regr18.y:25.18-24:     previous declaration
-glr-regr18.y:27.13-19: error: result type clash on merge function 'merge': <type3> != <type2>
-glr-regr18.y:26.18-24:     previous declaration
+[[glr-regr18.y:28.18-24: error: result type clash on merge function 'merge': <type2> != <type1>
+glr-regr18.y:27.18-24:     previous declaration
+glr-regr18.y:29.13-19: error: result type clash on merge function 'merge': <type3> != <type2>
+glr-regr18.y:28.18-24:     previous declaration

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1677,7 +1658,7 @@ AT_CLEANUP
 
 AT_SETUP([Ambiguity reports])
 
 
 AT_SETUP([Ambiguity reports])
 

-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])

 AT_DATA_GRAMMAR([input.y],
 [[
 %{
 AT_DATA_GRAMMAR([input.y],
 [[
 %{


@@ -1698,14 +1679,9 @@ start:
 b: 'b';
 d: /* nada.  */;
 %%
 b: 'b';
 d: /* nada.  */;
 %%

-]AT_YYLEX_DEFINE(["abc"])[

 ]AT_YYERROR_DEFINE[
 ]AT_YYERROR_DEFINE[

-int
-main (void)
-{
-  yydebug = 1;
-  return !!yyparse ();
-}
+]AT_YYLEX_DEFINE(["abc"])[
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -1714,7 +1690,7 @@ AT_BISON_CHECK([[-o input.c input.y]], 0, [],
 ]])
 AT_COMPILE([input])
 
 ]])
 AT_COMPILE([input])
 

-AT_PARSER_CHECK([[./input]], 1, [],
+AT_PARSER_CHECK([[./input --debug]], 1, [],

 [Starting parse
 Entering state 0
 Reading a token: Next token is token 'a' ()
 [Starting parse
 Entering state 0
 Reading a token: Next token is token 'a' ()


@@ -1723,14 +1699,14 @@ Entering state 1
 Reading a token: Next token is token 'b' ()
 Shifting token 'b' ()
 Entering state 3
 Reading a token: Next token is token 'b' ()
 Shifting token 'b' ()
 Entering state 3

-Reducing stack 0 by rule 3 (line 25):
+Reducing stack 0 by rule 3 (line 27):

    $1 = token 'b' ()
 -> $$ = nterm b ()
 Entering state 4
 Reading a token: Next token is token 'c' ()
 Shifting token 'c' ()
 Entering state 6
    $1 = token 'b' ()
 -> $$ = nterm b ()
 Entering state 4
 Reading a token: Next token is token 'c' ()
 Shifting token 'c' ()
 Entering state 6

-Reducing stack 0 by rule 4 (line 26):
+Reducing stack 0 by rule 4 (line 28):

 -> $$ = nterm d ()
 Entering state 7
 Reading a token: Now at end of input.
 -> $$ = nterm d ()
 Entering state 7
 Reading a token: Now at end of input.


@@ -1773,3 +1749,33 @@ Cleanup: popping token 'a' ()
 ])
 
 AT_CLEANUP
 ])
 
 AT_CLEANUP

+
+
+## ----------------------------------------------------------------- ##
+## Predicates.                                                       ##
+##                                                                   ##
+## http://lists.gnu.org/archive/html/bug-bison/2013-10/msg00004.html ##
+## ----------------------------------------------------------------- ##
+
+AT_SETUP([Predicates])
+
+# FIXME: We need genuine test cases with uses of %?.
+
+AT_DATA_GRAMMAR([input.y],
+[[%glr-parser
+%expect-rr 1
+%%
+// Exercise "%?{...}" and "%? {...}".
+widget:
+  %? {new_syntax} "widget" id new_args  { $$ = f($3, $4); }
+| %?{!new_syntax} "widget" id old_args  { $$ = f($3, $4); }
+;
+id:;
+new_args:;
+old_args:;
+%%
+]])
+
+AT_BISON_CHECK([[input.y]])
+
+AT_CLEANUP