Re: Loops (was Re: do { quit; } else { })

On Sat, 14 Jun 2025 13:57:56 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

Bonita Montero <Bonita.Montero@gmail.com> writes:

Am 10.06.2025 um 15:01 schrieb Tim Rentsch:
 

Consider the following program:
 
    #include <stdio.h>
    #include <string.h>
 
    typedef unsigned long long ULL;
    ULL hello = ((((0ULL +'o' <<8) +'l' <<8) +'l' <<8) +'e' <<8) +
'h';
 
    int
    main(){
       printf( "length is %zu\n", strlen( (char*)&hello ) );
       return  0;
    }
 
On a little endian machine (with CHAR_BIT == 8) this program works,
and TTBOMK conforms to both the letter and the spirit of the C
standard, without any undefined behavior (on that platform).  Yet
there are no arrays in sight, and certainly no array objects. 

>
There are not much remaining big-endian architectures today. 

 
Ethernet is big-endian at the byte level and little-endian
at the bit level.
 

802.3 frames are big-endian, because of Length field.
Several orders of magnitude more popular Ethernet II frames are
endian-neutral.