Zach Welch wrote:
> On Fri, 2009-04-24 at 18:39 +0200, Magnus Lundin wrote:
> [snip]
>
>>> static tap_state_t exception_path[] = {
>>> TAP_DREXIT2,
>>> TAP_DRSHIFT,
>>> TAP_DREXIT1,
>>> TAP_DRUPDATE,
>>> TAP_IDLE,
>>> };
>>>
>>> jtag_add_pathmove(
>>> sizeof(exception_path)/sizeof(exception_path[0]), exception_path);
>>>
>
> Can we stick the following somewhere in the code:
>
> #define ARRAYSIZEOF(x) (sizeof(x) / sizeof((x)[0]))
>
DIM() is shorter.
> and use it instead of that underlying expression? I use this macro in
> my projects frequently, but I always wonder if it could be #include'd
> from a standard header. Anyway, to take your example one step further:
>
> #define JTAG_ADD_PATH_EXCEPTIONS(x) \
> jtag_add_pathmove(ARRAYSIZEOF(x), x);
>
> then:
>
> JTAG_ADD_PATH_EXCEPTIONS(exception_path);
>
No thanks to this 2nd one, this obscures things.
jtag_add_pathmove( DIM(x), x);
Is preferred.
Dick
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