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* If the user does not define YYSTYPE as a macro, Bison now declares it

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using typedef instead of defining it as a macro.  POSIX requires this.
  For consistency, YYLTYPE is also declared instead of defined.

* %union directives can now have a tag before the `{', e.g., the
  directive `%union foo {...}' now generates the C code
  `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
  The default union tag is `YYSTYPE', for compatibility with Solaris 9 Yacc.
  For consistency, YYLTYPE's struct tag is now `YYLTYPE' instead of `yyltype'.

* `yystype' and `yyltype' are now obsolescent macros instead of being
  typedefs or tags; they are no longer documented and will be
  withdrawn in a future release.

Fix copyright notice.
This commit is contained in:
Paul Eggert
2002-12-24 07:40:14 +00:00
parent 52328c6e99
commit 75eb3bc4e7
1 changed files with 19 additions and 4 deletions
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23
NEWS
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@@ -3,6 +3,20 @@ Bison News
Changes in version 1.75e:
* If the user does not define YYSTYPE as a macro, Bison now declares it
using typedef instead of defining it as a macro. POSIX requires this.
For consistency, YYLTYPE is also declared instead of defined.
* %union directives can now have a tag before the `{', e.g., the
directive `%union foo {...}' now generates the C code
`typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
The default union tag is `YYSTYPE', for compatibility with Solaris 9 Yacc.
For consistency, YYLTYPE's struct tag is now `YYLTYPE' instead of `yyltype'.
* `yystype' and `yyltype' are now obsolescent macros instead of being
typedefs or tags; they are no longer documented and will be
withdrawn in a future release.
* References to the experimental %lex-param and %parse-param directives
have been temporarily removed from the manual, since we don't want
users to rely upon these features quite yet.
@@ -514,16 +528,17 @@ End:
-----
Copyright (C) 2001, 2002 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free
Software Foundation, Inc.
This file is part of GNU Autoconf.
This file is part of Bison, the GNU Compiler Compiler.
GNU Autoconf is free software; you can redistribute it and/or modify
Bison is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Autoconf is distributed in the hope that it will be useful,
Bison is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.