[PATCH v7 14/14] linux/termios: regression test for termios speed functions

[H. Peter Anvin]

On 2025-06-10 08:38, Adhemerval Zanella Netto wrote:
>> +#define array_size(a) (sizeof(a)/sizeof((a)[0]))
> 
> We have include/array_length.h exactly for that ;)

How would you feel about this addition to <array_length.h> (as a 
separate patch)? I have found these to be incredibly useful macros in a 
lot of contexts...

/* foreach (PTR, ARRAY) iterates over all the elements in an array,
    assigning the locally defined pointer variable PTR to each element
    in turn.

    foreach_const (PTR, ARRAY) does the same, but PTR is declared const
    even if the array is not. */
#define foreach(ptr,array)					\
     for (__typeof (&(array)[0]) ptr = (array) ;			\
	 ptr < array_end(array) ; ptr++)

#define foreach_const(ptr,array)				\
     for (const __typeof (&(array)[0]) ptr = (array) ;		\
	 ptr < array_end(array) ; ptr++)