* data/c.m4 (b4_c_modern): New macro, with a new provision for _MSC_VER.

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

diff --git a/tests/glr-regression.at b/tests/glr-regression.at
index 1971649d063f5d2af7ce8c7f38376cf34c7e542b..ad8f6d864fbb3b6733b0668a61d51973f1466f24 100644 (file)
--- a/tests/glr-regression.at
+++ b/tests/glr-regression.at
@@ -120,7 +120,7 @@ AT_DATA_GRAMMAR([glr-regr2a.y],
 /* Reported by S. Eken */
 
 %{
 /* Reported by S. Eken */
 
 %{

-  #define YYSTYPE char const *
+  #define YYSTYPE char *

 
   #include <ctype.h>
   #include <stdio.h>
 
   #include <ctype.h>
   #include <stdio.h>


@@ -138,9 +138,11 @@ command:
     's' var 't'
        { printf ("Variable: '%s'\n", $2); }
     'v' 'x' 'q'
     's' var 't'
        { printf ("Variable: '%s'\n", $2); }
     'v' 'x' 'q'

+       { free ($2); }

   | 's' var_list 't' 'e'
   | 's' var_list 't' 'e'

-       { printf ("Varlist: '%s'\n", $2); }
+       { printf ("Varlist: '%s'\n", $2); free ($2); }

   | 's' var 't' var_printer 'x'
   | 's' var 't' var_printer 'x'

+       { free ($2); }

   ;
 
 var:
   ;
 
 var:


@@ -153,10 +155,10 @@ var_list:
     { $$ = $1; }
   | var ',' var_list
     {
     { $$ = $1; }
   | var ',' var_list
     {

-      char *s = (char *) malloc (strlen ($1) + 1 + strlen ($3) + 1);
-      strcpy (s, $1);
+      char *s = (char *) realloc ($1, strlen ($1) + 1 + strlen ($3) + 1);

       strcat (s, ",");
       strcat (s, $3);
       strcat (s, ",");
       strcat (s, $3);

+      free ($3);

       $$ = s;
     }
   ;
       $$ = s;
     }
   ;


@@ -633,6 +635,183 @@ AT_CHECK([[./glr-regr7]], 2, [],
 [memory exhausted
 ])
 
 [memory exhausted
 ])
 

-AT_XFAIL_IF(:)
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Incorrect default location for empty right-hand sides.  Adapted from bug  ##
+## 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         ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Incorrectly initialized location for empty right-hand side in GLR])
+
+AT_DATA_GRAMMAR([glr-regr8.y],
+[[
+%{
+  #include <stdio.h>
+  #include <stdlib.h>
+  static void yyerror (char const *);
+  static int yylex (void);
+  static void yyerror(const char *msg);
+%}
+
+%token T_CONSTANT
+%token T_PORT
+%token T_SIGNAL
+
+%glr-parser
+
+%%
+
+
+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
+       ;
+
+OptConstantWord        : /* empty */
+       | T_CONSTANT
+       ;
+
+OptSignalWord  : /* empty */
+               { printf("empty: %d/%d\n", @$.first_column, @$.last_column); }
+       | T_SIGNAL
+       ;
+
+%%
+
+void yyerror(const char *msg)
+{
+  fprintf (stderr, "error\n");
+}
+
+static int lexIndex;
+
+int yylex (void)
+{
+  lexIndex += 1;
+  switch (lexIndex)
+    {
+    case 1:
+      yylloc.first_column = 1;
+      yylloc.last_column = 9;
+      return T_PORT;
+    case 2:
+      yylloc.first_column = 13;
+      yylloc.last_column = 17;
+      return T_PORT;
+    default:
+      return 0;
+    }
+}
+
+int
+main (void)
+{
+  yyparse();
+  return 0;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr8.c glr-regr8.y]], 0, [],
+[glr-regr8.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr8])
+
+AT_CHECK([[./glr-regr8]], 0,
+[empty: 9/9
+1/9 - 9/9 - 13/17
+],
+[])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## No users destructors if stack 0 deleted                                   ##
+## Thanks to Joel E. Denny for this test; see                                ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00109.html>.  ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([No users destructors if stack 0 deleted])
+
+AT_DATA_GRAMMAR([glr-regr9.y],
+[[
+%{
+# include <stdio.h>
+# include <stdlib.h>
+  static void yyerror (char const *);
+  static int yylex (void);
+# define YYSTACKEXPANDABLE 0
+  static int tokens = 0;
+  static int destructors = 0;
+# define USE(Var)
+%}
+
+%glr-parser
+%union { int dummy; }
+%type <dummy> 'a'
+
+%destructor {
+  destructors += 1;
+} 'a'
+
+%%
+
+start:
+    ambig0 'a'   { destructors += 2; USE ($2); }
+  | ambig1 start { destructors += 1; }
+  | ambig2 start { destructors += 1; }
+  ;
+
+ambig0: 'a' ;
+ambig1: 'a' ;
+ambig2: 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+  tokens += 1;
+  return 'a';
+}
+
+static void
+yyerror (char const *msg)
+{
+  fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+  int exit_status;
+  exit_status = yyparse ();
+  if (tokens != destructors)
+    {
+      fprintf (stderr, "Tokens = %d, Destructors = %d\n", tokens, destructors);
+      return 1;
+    }
+  return !exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr9.c glr-regr9.y]], 0, [],
+[glr-regr9.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr9])
+
+AT_CHECK([[./glr-regr9]], 0, [],
+[memory exhausted
+])

 
 AT_CLEANUP
 
 AT_CLEANUP