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Style: fix go vet warning

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This commit is contained in:
Dreamacro 2019-05-26 13:55:13 +08:00
parent ad13ad8dba
commit 016e7bd0b4
1 changed files with 9 additions and 13 deletions
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22
common/murmur3/murmur32.go
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@ -4,6 +4,7 @@ package murmur3
import ( import (
"hash" "hash"
"math/bits"
"unsafe" "unsafe"
) )
@ -54,11 +55,11 @@ func (d *digest32) bmix(p []byte) (tail []byte) {
k1 := *(*uint32)(unsafe.Pointer(&p[i*4])) k1 := *(*uint32)(unsafe.Pointer(&p[i*4]))
k1 *= c1_32 k1 *= c1_32
k1 = (k1 << 15) | (k1 >> 17) // rotl32(k1, 15) k1 = bits.RotateLeft32(k1, 15)
k1 *= c2_32 k1 *= c2_32
h1 ^= k1 h1 ^= k1
h1 = (h1 << 13) | (h1 >> 19) // rotl32(h1, 13) h1 = bits.RotateLeft32(h1, 13)
h1 = h1*4 + h1 + 0xe6546b64 h1 = h1*4 + h1 + 0xe6546b64
} }
d.h1 = h1 d.h1 = h1
@ -80,7 +81,7 @@ func (d *digest32) Sum32() (h1 uint32) {
case 1: case 1:
k1 ^= uint32(d.tail[0]) k1 ^= uint32(d.tail[0])
k1 *= c1_32 k1 *= c1_32
k1 = (k1 << 15) | (k1 >> 17) // rotl32(k1, 15) k1 = bits.RotateLeft32(k1, 15)
k1 *= c2_32 k1 *= c2_32
h1 ^= k1 h1 ^= k1
} }
@ -102,20 +103,15 @@ func Sum32WithSeed(data []byte, seed uint32) uint32 {
h1 := seed h1 := seed
nblocks := len(data) / 4 nblocks := len(data) / 4
var p uintptr for i := 0; i < nblocks; i++ {
if len(data) > 0 { k1 := *(*uint32)(unsafe.Pointer(&data[i*4]))
p = uintptr(unsafe.Pointer(&data[0]))
}
p1 := p + uintptr(4*nblocks)
for ; p < p1; p += 4 {
k1 := *(*uint32)(unsafe.Pointer(p))
k1 *= c1_32 k1 *= c1_32
k1 = (k1 << 15) | (k1 >> 17) // rotl32(k1, 15) k1 = bits.RotateLeft32(k1, 15)
k1 *= c2_32 k1 *= c2_32
h1 ^= k1 h1 ^= k1
h1 = (h1 << 13) | (h1 >> 19) // rotl32(h1, 13) h1 = bits.RotateLeft32(h1, 13)
h1 = h1*4 + h1 + 0xe6546b64 h1 = h1*4 + h1 + 0xe6546b64
} }
@ -132,7 +128,7 @@ func Sum32WithSeed(data []byte, seed uint32) uint32 {
case 1: case 1:
k1 ^= uint32(tail[0]) k1 ^= uint32(tail[0])
k1 *= c1_32 k1 *= c1_32
k1 = (k1 << 15) | (k1 >> 17) // rotl32(k1, 15) k1 = bits.RotateLeft32(k1, 15)
k1 *= c2_32 k1 *= c2_32
h1 ^= k1 h1 ^= k1
} }