diff options
| -rw-r--r-- | ruby_atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ruby_atomic.h b/ruby_atomic.h index eaa9fcd869..fa888a1db0 100644 --- a/ruby_atomic.h +++ b/ruby_atomic.h @@ -117,7 +117,7 @@ rb_atomic_fetch_add(volatile rb_atomic_t *var, rb_atomic_t val) static inline rb_atomic_t rb_atomic_fetch_sub(volatile rb_atomic_t *var, rb_atomic_t val) { - return atomic_sub_int_nv(var, val) + val; + return atomic_add_int_nv(var, (rb_atomic_t)(-(int)val)) + val; } # if defined(_LP64) || defined(_I32LPx) |