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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-05 00:25:43 (GMT)
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-05 00:25:43 (GMT)
commitc5d2ef80a47184965be3c220ec173d90aa968074 (patch)
tree7c5ba69409d5d1cb02643477b1e41a0b15954f6d /ruby_atomic.h
parent4a1b9786dc7fc460a438f4ac17c10ae0976ebcf1 (diff)
ruby_atomic.h: fix the argument order
* ruby_atomic.h (ATOMIC_SIZE_CAS): fix the argument order of InterlockedCompareExchange64. new value and then old value is the last. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52892 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_atomic.h')
-rw-r--r--ruby_atomic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/ruby_atomic.h b/ruby_atomic.h
index 57368a7..c8c84ed 100644
--- a/ruby_atomic.h
+++ b/ruby_atomic.h
@@ -81,7 +81,7 @@ rb_w32_atomic_cas(volatile rb_atomic_t *var, rb_atomic_t oldval, rb_atomic_t new
# define ATOMIC_SIZE_INC(var) InterlockedIncrement64(&(var))
# define ATOMIC_SIZE_DEC(var) InterlockedDecrement64(&(var))
# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange64(&(var), (val))
-# define ATOMIC_SIZE_CAS(var, oldval, val) InterlockedCompareExchange64(&(var), (oldval), (val))
+# define ATOMIC_SIZE_CAS(var, oldval, newval) InterlockedCompareExchange64(&(var), (newval), (oldval))
# else
# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd((LONG *)&(var), (val))
# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd((LONG *)&(var), -(LONG)(val))