diff options
Diffstat (limited to 'libgo/go/compress/flate/inflate.go')
| -rw-r--r-- | libgo/go/compress/flate/inflate.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libgo/go/compress/flate/inflate.go b/libgo/go/compress/flate/inflate.go index 9a8c4fc455a..faa33cc6e9b 100644 --- a/libgo/go/compress/flate/inflate.go +++ b/libgo/go/compress/flate/inflate.go @@ -10,6 +10,7 @@ package flate import ( "bufio" "io" + mathbits "math/bits" "strconv" "sync" ) @@ -176,7 +177,7 @@ func (h *huffmanDecoder) init(bits []int) bool { link := nextcode[huffmanChunkBits+1] >> 1 h.links = make([][]uint32, huffmanNumChunks-link) for j := uint(link); j < huffmanNumChunks; j++ { - reverse := int(reverseByte[j>>8]) | int(reverseByte[j&0xff])<<8 + reverse := int(mathbits.Reverse16(uint16(j))) reverse >>= uint(16 - huffmanChunkBits) off := j - uint(link) if sanity && h.chunks[reverse] != 0 { @@ -194,7 +195,7 @@ func (h *huffmanDecoder) init(bits []int) bool { code := nextcode[n] nextcode[n]++ chunk := uint32(i<<huffmanValueShift | n) - reverse := int(reverseByte[code>>8]) | int(reverseByte[code&0xff])<<8 + reverse := int(mathbits.Reverse16(uint16(code))) reverse >>= uint(16 - n) if n <= huffmanChunkBits { for off := reverse; off < len(h.chunks); off += 1 << uint(n) { @@ -556,7 +557,7 @@ readLiteral: return } } - dist = int(reverseByte[(f.b&0x1F)<<3]) + dist = int(mathbits.Reverse8(uint8(f.b & 0x1F << 3))) f.b >>= 5 f.nb -= 5 } else { |