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util.h: add a note about __dead and noreturn hints - sfeed - RSS and Atom parser |
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--- |
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commit b2b2426f7742a8a640f1bd8bb9709452baebdca7 |
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parent 1c9433f80c0209c304236f84b58f87bd1ddf261f |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Sat, 2 Nov 2024 12:31:26 +0100 |
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util.h: add a note about __dead and noreturn hints |
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- Add a note about the attribute for at least gcc/clang. |
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- _Noreturn has been deprecated. |
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- C23 introduces noreturn. |
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This is useful for testing with static analyzers like clang analyzer: |
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scan-build make |
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Running with scan-build make would return all false-positives for functions |
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using err(), errx() and die(). |
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Diffstat: |
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M util.h | 3 ++- |
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1 file changed, 2 insertions(+), 1 deletion(-) |
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--- |
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diff --git a/util.h b/util.h |
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@@ -57,7 +57,8 @@ enum { |
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FieldLast |
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}; |
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-/* hint for compilers and static analyzers that a function exits */ |
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+/* hint for compilers and static analyzers that a function does not return. |
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+ some compilers use: __attribute__((noreturn)), _Noreturn, noreturn */ |
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#ifndef __dead |
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#define __dead |
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#endif |
