c++: fix several issues with locations

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index 60a62e1de44d8f3f590e41da06a724931f74803d..cf118c15ee83f632b677a7c23491c4fe9560c70f 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -295,11 +295,11 @@ GNU Bison NEWS
     yylval.sval = "42"; return STRING;
 
   The %define variable api.value.type supports several special values.  The
-  value "union" means that the user provides genuine types, not union member
-  names such as "ival" and "sval" above (WARNING: will fail if
+  keyword value 'union' means that the user provides genuine types, not
+  union member names such as "ival" and "sval" above (WARNING: will fail if
   -y/--yacc/%yacc is enabled).
 
-    %define api.value.type "union"
+    %define api.value.type union
     %token <int> INT "integer"
     %token <char *> STRING "string"
     %printer { fprintf (yyo, "%d", $$); } <int>
@@ -309,15 +309,15 @@ GNU Bison NEWS
     yylval.INT = 42; return INT;
     yylval.STRING = "42"; return STRING;
 
-  The value "variant" is somewhat equivalent, but for C++ special provision
-  is made to allow classes to be used (more about this below).
+  The keyword value variant is somewhat equivalent, but for C++ special
+  provision is made to allow classes to be used (more about this below).
 
-    %define api.value.type "variant"
+    %define api.value.type variant
     %token <int> INT "integer"
     %token <std::string> STRING "string"
 
-  Any other name is a user type to use.  This is where YYSTYPE used to be
-  used.
+  Values between braces denote user defined types.  This is where YYSTYPE
+  used to be used.
 
     %code requires
     {
@@ -334,7 +334,7 @@ GNU Bison NEWS
         } u;
       };
     }
-    %define api.value.type "struct my_value"
+    %define api.value.type {struct my_value}
     %token <u.ival> INT "integer"
     %token <u.sval> STRING "string"
     %printer { fprintf (yyo, "%d", $$); } <u.ival>
@@ -569,6 +569,21 @@ GNU Bison NEWS
       ...
     }
 
+*** C++ locations
+
+  There are operator- and operator-= for 'location'.  Negative line/column
+  increments can no longer underflow the resulting value.
+
+* Noteworthy changes in release ?.? (????-??-??) [?]
+
+** Bug fixes
+
+*** Fix compiler attribute portability (yacc.c)
+
+  With locations enabled, __attribute__ was used unprotected.
+
+*** Fix some compiler warnings (lalr1.cc)
+
 * Noteworthy changes in release 2.7 (2012-12-12) [stable]
 
 ** Bug fixes