Re: bison'd files don't compile under Microsoft VC++

[David Gluss]

this is the MS compiler as of a week ago.
DG
It would be really nice if I (and everyone else in the world) didn't have to
change their source code.  Considering how trivial the patch is, and how
pervasive the Microsoft C compiler is, I'm surprised that this seems such
a hard problem.
----- Original Message -----
From: "Hans Aberg" <address@hidden>
To: "Akim Demaille" <address@hidden>
Cc: "David Gluss" <address@hidden>; <address@hidden>;
<address@hidden>; "Paul Eggert" <address@hidden>
Sent: Wednesday, February 13, 2002 2:42 PM
Subject: Re: bison'd files don't compile under Microsoft VC++


> At 19:47 +0100 2002/02/13, Akim Demaille wrote:
> >| One of the 'features' of the Microsoft environment is that size_t isn't
in
> >| the std:: namespace.
> >| malloc and free didn't make it either.
>
> Strange, I mean if you have the <cstddef> header. Are sure you compiler
> ain't very old?
>
> >| The versions of bison.simple in Bison 1.3.1 and Bison 1.3.3 won't work
with
> >| Microsoft.
> >
> >I was sure this would happen.  Sigh.
> ...
> >Well, may I ask you what would happen had Bison output some real C++?
> >Would you switch to that environment, or would you still use the C
> >parsers compiled with a C++ compiler?
> >
> >I think we went too far in our attempt to please C++ compilers.
> >Bison.simple is definitely meant for C.
> >
> >Opinions?  Paul?  I hope to be able to release Bison 1.50 with C++
> >some time in the next two months, but...
>
> It is not so difficult to fix:
>
> In bison.simple, change to:
> #ifndef YYSTD
> # ifdef __cplusplus
> #  define YYSTD(x) std::x
> # else
> #  define YYSTD(x) x
> # endif
> #endif
>
> and to (writing in YYSTD in the C++ part):
>
> #if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
> # define YYSIZE_T __SIZE_TYPE__
> #endif
> #if ! defined (YYSIZE_T) && defined (size_t)
> # define YYSIZE_T size_t
> #endif
> #if ! defined (YYSIZE_T)
> # ifdef __cplusplus
> #  include <cstddef> /* INFRINGES ON USER NAME SPACE */
> #  define YYSIZE_T YYSTD(size_t)
> # else
> #  ifdef __STDC__
> #   include <stddef.h> /* INFRINGES ON USER NAME SPACE */
> #   define YYSIZE_T size_t
> #  endif
> # endif
> #endif
> #if ! defined (YYSIZE_T)
> # define YYSIZE_T unsigned int
> #endif
>
> Then those that insist on using obsolete and backwards compilers that
don't
> use the appropriate namespaces can put into their .y file:
> #define YYSTD(x) x
>
> -- This is of course the idea of using YYSTD everywhere instead of
defining
> the names explicitly. (If one wants, one can put it in also in the palces
> which are only compiled using C, but I really do not know any use of that,
> so I didn't do that above.)
>
>   Hans Aberg
>
>
>
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