programming question: u_char vs. uint32_t

Andrew andrew.chace at gmail.com
Fri May 5 01:08:36 UTC 2006


On Thu, 2006-05-04 at 18:03 -0700, John-Mark Gurney wrote:
> Andrew wrote this message on Thu, May 04, 2006 at 19:57 -0500:
> > I'm reading through /usr/src/sys/dd/dd.h, and I noticed the following
> > lines:
> > 
> > 39      u_char          *db;            /* buffer address */
> > 40	u_char          *dbp;           /* current buffer I/O address */
> > 
> > Why was u_char used instead of uint32_t? Aren't pointers always 32 bits
> > on a 32 bit machine?
> 
> You're confusing the type of the pointer w/ a pointer...  These are
> correct, please read a basic intro to pointers in C...


Ahh yes, thank-you. A small case of cognitive indigestion; I think it's
clearing up now. ;-)

-Andrew



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