"Incompatible" typedefs

Dave Korn dave.korn.cygwin@googlemail.com
Wed Feb 4 14:37:00 GMT 2009


Charles Wilson wrote:

> I would have thought that these two:
> 
> typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
> typedef unsigned short int uint16_t;
> 
> are very different. 

   I wouldn't have.  They're both unsigned, they're both integers, and they're 
both 16 bits.  HImode is the internal GCC type that gets mapped to C short 
ints.  Why do you think they would differ?

> I'm not sure what useful conclusions we can draw from looking at how
> linux does it, Or maybe I just need some sleep.

   I think we just add 'int' where it's missing from longs and long longs and 
we're done.  And there should be a handy test-case to reduce from the octave 
sources.

     cheers,
       DaveK




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