[PD] gate object changing type - ?

[Mathieu Bouchard]

On Fri, 10 Nov 2006, Hans-Christoph Steiner wrote:

> Krzysztof thought it might be related to -mms-bitfields option in MinGW. 
> I think the bugs have occured using with and without that field. 
> Currently, cyclone and family are set to compile without -mms-bitfields.

I think that for that kind of problem it could be a good idea to have a 
new call in m_pd.h in which an external states to pd what its 
interpretation of m_pd.h's structs is, so that pd can detect problems. 
e.g. m_pd.h could contain a statement-like macro and a function decl:

#define pd_begin_setup() pd_make_sure(sizeof(t_text))
EXTERN pd_make_sure(size_t sizeof_text);

And then every external would call pd_begin_setup() as soon as it enters 
its own setup function, in order to make sure that the external is 
binary-compatible.

I'm not 100% satisfied with the idea, but I think that it could really 
help categorize some bugs better. This case seems to be win32-only, 
though, so I don't think that I can reproduce it (?). Are there similar 
options on Linux for struct alignment? If there are, they must be super 
rare.

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| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada