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* atomic.h(ATOMIC_SET): add cast to void to prevent misuse.

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[ruby-dev:44596] [Bug #5439]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33462 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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kosaki 2011-10-13 09:19:10 +00:00
parent 09d18bec58
commit 123645aab6
2 changed files with 7 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Oct 13 18:13:04 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* atomic.h(ATOMIC_SET): add cast to void to prevent misuse.
[ruby-dev:44596] [Bug #5439]
Thu Oct 13 18:04:27 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* gc.c (rb_gc_finalize_deferred, rb_objspace_call_finalizer):

4
atomic.h
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@ -36,7 +36,7 @@ rb_w32_atomic_or(volatile rb_atomic_t *var, rb_atomic_t val)
* http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html */
typedef unsigned int rb_atomic_t; /* Anything OK */
# define ATOMIC_SET(var, val) __sync_lock_test_and_set(&(var), (val))
# define ATOMIC_SET(var, val) (void)__sync_lock_test_and_set(&(var), (val))
# define ATOMIC_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_DEC(var) __sync_fetch_and_sub(&(var), 1)
# define ATOMIC_OR(var, val) __sync_or_and_fetch(&(var), (val))
@ -46,7 +46,7 @@ typedef unsigned int rb_atomic_t; /* Anything OK */
typedef int rb_atomic_t;
extern rb_atomic_t ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val);
# define ATOMIC_SET(var, val) ((var) = (val))
# define ATOMIC_SET(var, val) (void)((var) = (val))
# define ATOMIC_INC(var) (++(var))
# define ATOMIC_DEC(var) (--(var))
# define ATOMIC_OR(var, val) ((var) |= (val))