sfeed

commit b2b2426f7742a8a640f1bd8bb9709452baebdca7
parent 1c9433f80c0209c304236f84b58f87bd1ddf261f
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Sat,  2 Nov 2024 12:31:26 +0100

util.h: add a note about __dead and noreturn hints

- Add a note about the attribute for at least gcc/clang.
- _Noreturn has been deprecated.
- C23 introduces noreturn.

This is useful for testing with static analyzers like clang analyzer:
	scan-build make

Running with scan-build make would return all false-positives for functions
using err(), errx() and die().

Diffstat:
M
util.h
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/util.h b/util.h
@@ -57,7 +57,8 @@ enum {
 	FieldLast
 };
 
-/* hint for compilers and static analyzers that a function exits */
+/* hint for compilers and static analyzers that a function does not return.
+   some compilers use: __attribute__((noreturn)), _Noreturn, noreturn */
 #ifndef __dead
 #define __dead
 #endif