Bug#436239: [pkg-mad-maintainers] Bug#436239: libid3tag0-dev: header file "/usr/include/id3tag.h" does not contain definition for struct id3_file altough it references it

2007-08-06 Thread Folkert van Heusden
> > See subject
> > libid3tag0-dev: header file "/usr/include/id3tag.h" does not contain 
> > definition for struct id3_file altough it references it
> > [EMAIL PROTECTED]:~/Personal/src/acpitail$ grep id3_file 
> > /usr/include/id3tag.h | grep -v "^enum id3_file_mode"
> > struct id3_file *id3_file_open(char const *, enum id3_file_mode);
> > struct id3_file *id3_file_fdopen(int, enum id3_file_mode);
> > int id3_file_close(struct id3_file *);
> > struct id3_tag *id3_file_tag(struct id3_file const *);
> > int id3_file_update(struct id3_file *);
> > as you can see some functions require this structure but it is not defined 
> > anywhere
> 
> Looks to me like this is an opaque data type.   Its only ever referenced
> as a pointer type so the user of the API never needs to know what the
> layout of the type really is.

Hmmm, I could do (tested and it compiles):

void *handle = (void *)id3_file_open(...);

but I wonder if that is guaranteed to work.


Folkert van Heusden

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Bug#436239: [pkg-mad-maintainers] Bug#436239: libid3tag0-dev: header file "/usr/include/id3tag.h" does not contain definition for struct id3_file altough it references it

2007-08-06 Thread Sam Clegg
On Mon, 2007-08-06 at 15:07 +0200, Folkert van Heusden wrote:
> Package: libid3tag0-dev
> Version: 0.15.1b-10
> Severity: normal
> 
> 
> See subject
> libid3tag0-dev: header file "/usr/include/id3tag.h" does not contain 
> definition for struct id3_file altough it references it
> 
> [EMAIL PROTECTED]:~/Personal/src/acpitail$ grep id3_file 
> /usr/include/id3tag.h | grep -v "^enum id3_file_mode"
> struct id3_file *id3_file_open(char const *, enum id3_file_mode);
> struct id3_file *id3_file_fdopen(int, enum id3_file_mode);
> int id3_file_close(struct id3_file *);
> struct id3_tag *id3_file_tag(struct id3_file const *);
> int id3_file_update(struct id3_file *);
> 
> as you can see some functions require this structure but it is not defined 
> anywhere

Looks to me like this is an opaque data type.   Its only ever referenced
as a pointer type so the user of the API never needs to know what the
layout of the type really is.



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