How to Read this Declaration

[vaysagekv]

Hi,
I have seen a declaration like this in HTMLTidy source code

typedef void(TIDY_CALL *) TidyFree (void *buf)

Can I read it like TidyFree is a typedef to a function taking void
pointer and returning TIDY_CALL pointer casted to void ..Am I wrong.If
Wrong please tell me correct way to read it.

Thanks in advance
Vaysage

 

[Kaz Kylheku]

Hi,
I have seen a declaration like this in HTMLTidy source code

typedef void(TIDY_CALL *) TidyFree (void *buf)

Taken at face value (i.e. TidyFree is not a sneaky macro which
produces suitable tokens to make this work), it is not valid C syntax.

Can I read it like TidyFree is a typedef to a function taking void
pointer and returning TIDY_CALL pointer casted to void ..Am I wrong.If
Wrong please tell me correct way to read it.

The correct way to read it is "syntax error".

 

[Francois Grieu]

I have seen a declaration like this in HTMLTidy source code

typedef void(TIDY_CALL *) TidyFree (void *buf)

http://tidy.sourceforge.net/docs/api/tidy_8h-source.html
actually contains:

typedef void (TIDY_CALL *TidyFree)( void* buf );

Can I read it like TidyFree is a typedef to a function taking void
pointer and returning TIDY_CALL pointer casted to void ..Am I wrong.
If wrong please tell me correct way to read it.

TidyFree is the type for a pointer to a function accepting a pointer
to void as input, and returning no output.

Francois Grieu

 

[Francois Grieu]

I have seen a declaration like this in HTMLTidy source code

typedef void(TIDY_CALL *) TidyFree (void *buf)

http://tidy.sourceforge.net/docs/api/tidy_8h-source.html
actually contains:

typedef void (TIDY_CALL *TidyFree)( void* buf );

Can I read it like TidyFree is a typedef to a function taking void
pointer and returning TIDY_CALL pointer casted to void ..Am I wrong.
If wrong please tell me correct way to read it.

TidyFree is the type for a pointer to a function accepting a pointer
to void as input, and returning no output.
TIDY_CALL is meant to add attributes describing calling conventions
(e.g. fastcall, stdcall, pascal) that are not part of C.

Francois Grieu

 

[vaysagekv]

http://tidy.sourceforge.net/docs/api/tidy_8h-source.html
actually contains:

typedef void (TIDY_CALL *TidyFree)( void* buf );


TidyFree is the type for a pointer to a function accepting a pointer
to void as input, and returning no output.
TIDY_CALL is meant to add attributes describing calling conventions
(e.g. fastcall, stdcall, pascal) that are not part of C.

Francois Grieu

Thnaks a lot