[PATCH 4/7] simplify div by 2,4,8,16 statement
[email protected] Mon, 16 Mar 2015 13:26:16 -0700
| Newsgroups | org.kernel.vger.trinity |
|---|---|
| Message-ID | <[email protected]> |
From: Tyson Smith <[email protected]> --- random.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/random.c b/random.c index 8b4f715..8b8de04 100644 --- a/random.c +++ b/random.c @@ -108,10 +108,8 @@ unsigned int rand32(void) r = ~r + 1; /* we might get lucky if something is counting ints/longs etc. */ - if (ONE_IN(4)) { - int _div = 1 << RAND_RANGE(1, 4); /* 2,4,8 or 16 */ - r /= _div; - } + if (ONE_IN(4)) + r /= 2 << (rand() & 3); /* 2,4,8 or 16 */ /* limit the size */ switch (rand() % 5) { -- 1.9.1