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41 lines
1.7 KiB
41 lines
1.7 KiB
1 year ago
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From 7ca6eafaa28848cb917a2cd4af78a9c85c3fd51a Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Thu, 9 Mar 2023 13:14:12 +0900
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Subject: [PATCH] macro: support the case that the number of elements has const
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qualifier
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Follow-up for 5716c27e1f52d2aba9dd02916c01d6271d9d0b16.
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Addresses https://github.com/systemd/systemd/pull/26303#issuecomment-1460712007.
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(cherry picked from commit b9872fe1ddb61a7f930c652887c04e2f82b43be4)
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Related: #2190226
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---
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src/basic/macro.h | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/src/basic/macro.h b/src/basic/macro.h
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index b977730e54..72a2c7267e 100644
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--- a/src/basic/macro.h
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+++ b/src/basic/macro.h
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@@ -329,12 +329,14 @@ static inline int __coverity_check_and_return__(int condition) {
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#endif
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#endif
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-#define _FOREACH_ARRAY(i, array, num, m, s) \
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- for (typeof(num) m = (num); m > 0; m = 0) \
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- for (typeof(array[0]) *s = (array), *i = s; s && i < s + m; i++)
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+#define _FOREACH_ARRAY(i, array, num, m, end) \
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+ for (typeof(array[0]) *i = (array), *end = ({ \
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+ typeof(num) m = (num); \
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+ (i && m > 0) ? i + m : NULL; \
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+ }); end && i < end; i++)
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#define FOREACH_ARRAY(i, array, num) \
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- _FOREACH_ARRAY(i, array, num, UNIQ_T(m, UNIQ), UNIQ_T(s, UNIQ))
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+ _FOREACH_ARRAY(i, array, num, UNIQ_T(m, UNIQ), UNIQ_T(end, UNIQ))
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#define DEFINE_TRIVIAL_DESTRUCTOR(name, type, func) \
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static inline void name(type *p) { \
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