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* [PATCH] util/zlib-extra: de-inline gzerror_str
@ 2020-04-27 12:28 David Bremner
  2020-04-27 16:54 ` Daniel Kahn Gillmor
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: David Bremner @ 2020-04-27 12:28 UTC (permalink / raw)
  To: notmuch

It turns out the behaviour of inline functions in C header files is
not a good idea, and can cause linking problems if the compiler
decides not to inline them.  In principle this is solvable by using a
"static inline" declaration, but this potentially makes a copy in
every compilation unit. Since we don't actually care about the
performance of this function, just use a non-inline function.
---
 util/zlib-extra.c | 7 +++++++
 util/zlib-extra.h | 4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/util/zlib-extra.c b/util/zlib-extra.c
index 2d2d2414..3a75e504 100644
--- a/util/zlib-extra.c
+++ b/util/zlib-extra.c
@@ -85,3 +85,10 @@ gz_error_string (util_status_t status, gzFile file)
     else
 	return util_error_string (status);
 }
+
+const char *
+gzerror_str(gzFile file)
+{
+    int dummy;
+    return gzerror (file, &dummy);
+}
diff --git a/util/zlib-extra.h b/util/zlib-extra.h
index 296dc914..e9925c98 100644
--- a/util/zlib-extra.h
+++ b/util/zlib-extra.h
@@ -29,8 +29,8 @@ gz_error_string (util_status_t status, gzFile stream);
 
 /* Call gzerror with a dummy errno argument, the docs don't promise to
  * support the NULL case */
-inline const char *
-gzerror_str(gzFile file) { int dummy; return gzerror (file, &dummy); }
+const char *
+gzerror_str(gzFile file);
 
 #ifdef __cplusplus
 }
-- 
2.26.2

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-04-28 13:38 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-27 12:28 [PATCH] util/zlib-extra: de-inline gzerror_str David Bremner
2020-04-27 16:54 ` Daniel Kahn Gillmor
2020-04-27 18:03 ` Tomi Ollila
2020-04-28 13:38 ` David Bremner

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