[Expat-discuss] Expat 2.0 pre-release

[Karl Waclawek]

rolf at pointsman.de wrote:

>Hi Karl,
>
>thanks for pushing things - we need someone like this! (And sorry for
>my slowness :-( .)
>  
>

Yeah, I thought I just "stelle euch vor vollendete Tatsachen".

>On 23 Dec, Karl Waclawek wrote:
>  
>
>>I have posted another pre-release distribution snapshot 
>><http://www.libexpat.org/expat-2005-12-23.tar.gz> of the code currently 
>>in CVS on libexpat.org. Please try this out and report any problems you 
>>have. We'd like to get Expat 2.0 out soon.
>>
>>A late addition was the new (optional) |XML_LARGE_SIZE| feature to 
>>enable 64-bit integers on some API members. Please check how it builds 
>>and works for you.
>>    
>>
>
>The pre-release has at least the small problem, that the new signature
>of the changed XML_Get* functions need other *printf output
>conversions. 
>
>On linux, gcc 3.3, with
>
>./configure CPPFLAGS=-DXML_LARGE_SIZE
>
>I get this warnings
>
>gcc -I./lib -I. -g -O2 -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -DHAVE_EXPAT_CONFIG_H  -DXML_LARGE_SIZE -o xmlwf/xmlwf.o -c xmlwf/xmlwf.c
>xmlwf/xmlwf.c: In function `metaLocation':
>xmlwf/xmlwf.c:312: warning: long int format, different type arg (arg 3)
>xmlwf/xmlwf.c:312: warning: int format, different type arg (arg 5)
>xmlwf/xmlwf.c:312: warning: int format, different type arg (arg 6)
>gcc -I./lib -I. -g -O2 -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -DHAVE_EXPAT_CONFIG_H  -DXML_LARGE_SIZE -o xmlwf/xmlfile.o -c xmlwf/xmlfile.c
>xmlwf/xmlfile.c: In function `reportError':
>xmlwf/xmlfile.c:60: warning: int format, different type arg (arg 4)
>xmlwf/xmlfile.c:60: warning: int format, different type arg (arg 5)
>
>
>On linux, for xmlwf.c
>
>  ftprintf((FILE *)XML_GetUserData(parser),
>           T(" byte=\"%lld\" nbytes=\"%d\" line=\"%lld\" col=\"%lld\""),
>           XML_GetCurrentByteIndex(parser),
>           XML_GetCurrentByteCount(parser),
>           XML_GetCurrentLineNumber(parser),
>           XML_GetCurrentColumnNumber(parser));
>
>and for xmlfile.c
>
>    ftprintf(stdout, T("%s:%lld:%lld: %s\n"),
>             filename,
>             XML_GetErrorLineNumber(parser),
>             XML_GetErrorColumnNumber(parser),
>             message);
>
>seems to do the trick (note the %lld conversion - I think, %Ld would
>also work). Unfortunately, it's not that easy. There are at least ll,
>L, q and, IIRC, I64 (windows) as long long formated output conversion
>syntax, AFAIK. I'm afraid, we need another define, say XML_LL_MODIFIER
>to be used in that expat sample programs as
>
>    ftprintf(stdout, T("%s:%" XML_LL_MODIFIER "d:%" XML_LL_MODIFIER "d: %s\n"),
>
>Not really beautiful, but probably inevitably.
>  
>
But an internal one, defined by checking XML_LARGE_SIZE, right?
Like this, I suppose:

#ifdef XML_LARGE_SIZE  /* Use large integers for counts and positions. */
typedef long long XML_Index;
typedef unsigned long long XML_Size;
#define XML_LL_MODIFIER ll
#else
typedef long XML_Index;
typedef unsigned long XML_Size;
#define XML_LL_MODIFIER l
#endif /* XML_LARGE_SIZE */

I wonder why MS VC++ didn't give me any warnings.

>I wonder, why I don't see any define for XML_LARGE_SIZE to __int64
>under windows. As far as I know, at least VC++ 6.0 don't know long
>long, but has __int64 (you're much more the expert on this plattform,
>so please enlighten me, if I miss the obvious). If I'm right (I doubt
>it), then XML_LARGE_SIZE support under windows would be only possible
>after editing expat_external.h
>  
>
All later versions of MS VC++ support long long. So I thought: If you 
are on  MSVC++ 6.0
and want to use XML_LARGE_SIZE,  its your own fault. Actually, I don't 
even know how
to identify MS VC++ 6.0 at compile time (too lazy to search, I guess).

Karl