Interfacing C library with dllcc, long long typedef not working

>
> Hi,
> I am interfacing libsoundfile from Smalltalk (Cincom Smalltalk
> VisualWorks® Personal Use Edition, 7.9.1 of 18 octobre 2012)
>
> It is now working,  but I have to do some modifications in header file
> in order to get a working interface.
>
> For example the definition of sf_count_t is :
>
>
> #if (defined (_MSCVER) || defined (_MSC_VER))
> typedef __int64 sf_count_t ;
> #define SF_COUNT_MAX0x7fffffffffffffffi64
> #else
> typedef __int64 sf_count_t ;
> #define SF_COUNT_MAX0x7FFFFFFFFFFFFFFFLL
> #endif
>
> and gives :
>
> sf_count_t
> <C: typedef long long sf_count_t>
>
>
> and the function
>
> sf_count_tsf_write_float(SNDFILE *sndfile, const float *ptr, sf_count_t
> items) ;
>
> became :
>
> sf_write_float: sndfile with: ptr with: items
> <C: long long sf_write_float(SNDFILE * sndfile, const float * ptr, long
> long items)>
> ^self externalAccessFailedWith: _errorCode
>
> note : the "normal" definition should read :
>
> sf_write_float: sndfile with: ptr with: items
> <C: sf_count_t sf_write_float(SNDFILE * sndfile, const float *
> ptr, sf_count_t items)>
> ^self externalAccessFailedWith: _errorCode
>
> But with this last definition, I get a null result and no data is writen.
>
> Where is the mistake ?
> I am using a 32 bit image.
> will this code work in a 64 bit image ?
> in 32 bit a long long is 64 bit integer, what is a long long in 64 bit env ?
>
>
>
>
>
>
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>

> Yes Ralf,
>
> the response is 8.
>
> But if I use sf_count_t type instead of long long in declaration, the
> call return 0, and no data is writen.
> I find it strange.
>
>
>
>
> 2013/8/28 Ralf Propach <[hidden email] <mailto:[hidden email]>>
>
>     Hi  Vincent,
>
>     to find out the of a C data type, you can use the method #dataSize,
>     like this:
>
>     CIntegerType.SignedLongLong dataSize
>
>     YourLibrary new sf_count_t dataSize
>
>     What is the dataSize for your sf_count_t type?
>     It should be the same as CIntegerType.SignedLongLong dataSize, i.e. 8.
>
>     Ralf
>
>
>     Am 28.08.2013 16:31, schrieb Vincent Lesbros:
>
>
>         Hi,
>         I am interfacing libsoundfile from Smalltalk (Cincom Smalltalk
>         VisualWorks® Personal Use Edition, 7.9.1 of 18 octobre 2012)
>
>         It is now working,  but I have to do some modifications in
>         header file
>         in order to get a working interface.
>
>         For example the definition of sf_count_t is :
>
>
>         #if (defined (_MSCVER) || defined (_MSC_VER))
>         typedef __int64 sf_count_t ;
>         #define SF_COUNT___MAX0x7fffffffffffffffi64
>         #else
>         typedef __int64 sf_count_t ;
>         #define SF_COUNT___MAX0x7FFFFFFFFFFFFFFFLL
>         #endif
>
>         and gives :
>
>         sf_count_t
>         <C: typedef long long sf_count_t>
>
>
>         and the function
>
>         sf_count_tsf_write_float(__SNDFILE *sndfile, const float *ptr,
>         sf_count_t
>
>         items) ;
>
>         became :
>
>         sf_write_float: sndfile with: ptr with: items
>         <C: long long sf_write_float(SNDFILE * sndfile, const float *
>         ptr, long
>         long items)>
>         ^self externalAccessFailedWith: _errorCode
>
>         note : the "normal" definition should read :
>
>         sf_write_float: sndfile with: ptr with: items
>         <C: sf_count_t sf_write_float(SNDFILE * sndfile, const float *
>         ptr, sf_count_t items)>
>         ^self externalAccessFailedWith: _errorCode
>
>         But with this last definition, I get a null result and no data
>         is writen.
>
>         Where is the mistake ?
>         I am using a 32 bit image.
>         will this code work in a 64 bit image ?
>         in 32 bit a long long is 64 bit integer, what is a long long in
>         64 bit env ?
>
>
>
>
>
>
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>
>
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>