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-rw-r--r--atomic.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/atomic.h b/atomic.h
index 4d39c79489..ce095367bb 100644
--- a/atomic.h
+++ b/atomic.h
@@ -37,11 +37,11 @@ rb_w32_atomic_or(volatile rb_atomic_t *var, rb_atomic_t val)
# define ATOMIC_SIZE_DEC(var) InterlockedDecrement64(&(var))
# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange64(&(var), (val))
# else
-# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd(&(var), (val))
-# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd(&(var), -(val))
-# define ATOMIC_SIZE_INC(var) InterlockedIncrement(&(var))
-# define ATOMIC_SIZE_DEC(var) InterlockedDecrement(&(var))
-# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange(&(var), (val))
+# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd((LONG *)&(var), (val))
+# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd((LONG *)&(var), -(val))
+# define ATOMIC_SIZE_INC(var) InterlockedIncrement((LONG *)&(var))
+# define ATOMIC_SIZE_DEC(var) InterlockedDecrement((LONG *)&(var))
+# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange((LONG *)&(var), (val))
# endif
#elif defined HAVE_GCC_ATOMIC_BUILTINS