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Solaris does not provide atomic_sub family

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Nobuyoshi Nakada 2020-04-26 22:39:36 +09:00
parent 1760c60174
commit 257e01b61d
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1 changed files with 1 additions and 1 deletions
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ruby_atomic.h
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@ -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)