Andrew Haley wrote:
Okay, but ANS specifically does not allow you to do this subtraction. Also, there is no guarantee that every pointer is representable as a ptrdiff_t. (6.5.6 Para 9, if you're interested)
The point is: if your platform is one that does *not* have 8-bit chars (!!!),
http://www.36bit.org/ for platforms where CHAR_BITS is 9.
And for some non-related fun, http://www-1.ibm.com/servers/enable/site/porting/iseries/overview/faq_misc.html for a platform with 128 bit pointers.
cheers, dalibor topic
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