[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.9-40-g824b9a
From: |
Mark H Weaver |
Subject: |
[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.9-40-g824b9ad |
Date: |
Thu, 18 Jul 2013 18:26:35 +0000 |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU Guile".
http://git.savannah.gnu.org/cgit/guile.git/commit/?id=824b9ad8b792ab42c5cc614d66462dfaab489075
The branch, stable-2.0 has been updated
via 824b9ad8b792ab42c5cc614d66462dfaab489075 (commit)
from fe51c7b3e0a1e93be3bb81dd2d4b18936fe2df3a (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
commit 824b9ad8b792ab42c5cc614d66462dfaab489075
Author: Mark H Weaver <address@hidden>
Date: Thu Jul 18 14:10:43 2013 -0400
Modify SCM_UNPACK type check to avoid warnings in clang.
* libguile/tags.h (SCM_UNPACK): Change (*(SCM*)0=(x)) to
(*(volatile SCM *)0=(x)), to avoid null-dereference warnings
from clang. Reported by Shane Celis <address@hidden>.
-----------------------------------------------------------------------
Summary of changes:
libguile/tags.h | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/libguile/tags.h b/libguile/tags.h
index a3032bf..c41543f 100644
--- a/libguile/tags.h
+++ b/libguile/tags.h
@@ -87,14 +87,15 @@ typedef union SCM { struct { scm_t_bits n; } n; } SCM;
The 0?: constructions makes sure that the code is never executed,
and that there is no performance hit. However, the alternative is
compiled, and does generate a warning when used with the wrong
- pointer type.
+ pointer type. We use a volatile pointer type to avoid warnings
+ from clang.
The Tru64 and ia64-hp-hpux11.23 compilers fail on `case (0?0=0:x)'
statements, so for them type-checking is disabled. */
#if defined __DECC || defined __HP_cc
# define SCM_UNPACK(x) ((scm_t_bits) (x))
#else
-# define SCM_UNPACK(x) ((scm_t_bits) (0? (*(SCM*)0=(x)): x))
+# define SCM_UNPACK(x) ((scm_t_bits) (0? (*(volatile SCM *)0=(x)): x))
#endif
/*
hooks/post-receive
--
GNU Guile
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.9-40-g824b9ad,
Mark H Weaver <=