michaelh/zephyr
1
0
Fork 0
Code Releases Activity

sys/util.h: allow UTIL_LISTIFY to pass args to repeat macro

Browse source 
Change UTIL_LISTIFY to support passing arguments to the F macro.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2020-03-11 15:27:36 -05:00 • committed by Kumar Gala
commit 28a88fc638
2 changed files with 11 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

10
include/sys/util.h
View file

@ -738,10 +738,10 @@ u8_t u8_to_dec(char *buf, u8_t buflen, u8_t value);
* @arg LEN: The length of the sequence. Must be defined and less than
* 20.
*
* @arg F(i, F_ARG): A macro function that accepts two arguments.
* F is called repeatedly, the first argument
* is the index in the sequence, and the second argument is the third
* argument given to UTIL_LISTIFY.
* @arg F(i, ...): A macro function that accepts at least two arguments.
* F is called repeatedly, the first argument is the index in the sequence,
* the variable list of arguments passed to UTIL_LISTIFY are passed through
* to F.
*
* Example:
*
@ -753,7 +753,7 @@ u8_t u8_to_dec(char *buf, u8_t buflen, u8_t value);
* @note Calling UTIL_LISTIFY with undefined arguments has undefined
* behavior.
*/
#define UTIL_LISTIFY(LEN, F, F_ARG) UTIL_EVAL(UTIL_REPEAT(LEN, F, F_ARG))
#define UTIL_LISTIFY(LEN, F, ...) UTIL_EVAL(UTIL_REPEAT(LEN, F, __VA_ARGS__))
/**@brief Implementation details for NUM_VAR_ARGS */
#define NUM_VA_ARGS_LESS_1_IMPL( \