PKGBUILDs/core/systemd/0001-journal-fix-dangling-else-ambiguity.patch
2015-02-17 04:46:39 +00:00

44 lines
1.9 KiB
Diff

From 8d1c8bd746a6a14dec7470f93f843bcb0699f4b8 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 12 Dec 2014 09:52:06 +0100
Subject: [PATCH] journal: fix dangling 'else' ambiguity
Rework the sd-journal iterators to avoid dangling 'else' ambiguity. For a
detailed explanation, see:
commit bff686e2a981ccd0888cdf1981977d24320f1770
Author: David Herrmann <dh.herrmann@gmail.com>
Date: Fri Dec 12 09:43:54 2014 +0100
hwdb: fix dangling 'else' ambuguity
---
src/systemd/sd-journal.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/src/systemd/sd-journal.h b/src/systemd/sd-journal.h
index eb24372..00237a2 100644
--- a/src/systemd/sd-journal.h
+++ b/src/systemd/sd-journal.h
@@ -138,13 +138,15 @@ int sd_journal_reliable_fd(sd_journal *j);
int sd_journal_get_catalog(sd_journal *j, char **text);
int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **text);
+/* the inverse condition avoids ambiguity of danling 'else' after the macro */
#define SD_JOURNAL_FOREACH(j) \
- if (sd_journal_seek_head(j) >= 0) \
- while (sd_journal_next(j) > 0)
+ if (sd_journal_seek_head(j) < 0) { } \
+ else while (sd_journal_next(j) > 0)
+/* the inverse condition avoids ambiguity of danling 'else' after the macro */
#define SD_JOURNAL_FOREACH_BACKWARDS(j) \
- if (sd_journal_seek_tail(j) >= 0) \
- while (sd_journal_previous(j) > 0)
+ if (sd_journal_seek_tail(j) < 0) { } \
+ else while (sd_journal_previous(j) > 0)
#define SD_JOURNAL_FOREACH_DATA(j, data, l) \
for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
--
2.3.0