🚀 go-pugleaf

danpop@mail.cern.ch (Dan Pop) wrote:

>In <4fst7k$2gv@solutions.solon.com> aril@cmt.lpr.mail.carel.fi (Ari Lukumies) writes:

>>Standard states that sizeof(int) is the size of the register(s) used for arithmetics 

>Chapter and verse, please.  I couldn't find such a statement in the
>C standard and I'm typing this text on a machine where the size of an
>int is half the size of the integer registers.  This is actually very
>common, all people who run 16-bit code on 386 (or better) PC's are in
>the same situation.

AFAIK, the only thing that even comes close is ($6.1.2.5):

	A ``plain'' int object has the natural size suggested by the
	architecture of the execution environment (large enough to
	contain any value in the range INT_MIN to INT_MAX as 
	defined in the header <limits.h>).

but then, you already knew about that.  This doesn't use ``may'' so I
suppose it could be tajeo as real requirement, but "natural size
suggested by the execution environment" certainly sounds like a tough
clause to enforce to me.  

Since my first programming was done on a CDC mainframe, the natural size
_all_ execution environments suggest to me for integers is 60 bits.  I
guess it's a good thing I'm not in charge of accepting or rejecting
applications for C compiler certifications! <G>