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Diffstat (limited to 'libgo/go/compress/flate/copy.go')
| -rw-r--r-- | libgo/go/compress/flate/copy.go | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/libgo/go/compress/flate/copy.go b/libgo/go/compress/flate/copy.go deleted file mode 100644 index a3200a8f49..0000000000 --- a/libgo/go/compress/flate/copy.go +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package flate - -// forwardCopy is like the built-in copy function except that it always goes -// forward from the start, even if the dst and src overlap. -// It is equivalent to: -// for i := 0; i < n; i++ { -// mem[dst+i] = mem[src+i] -// } -func forwardCopy(mem []byte, dst, src, n int) { - if dst <= src { - copy(mem[dst:dst+n], mem[src:src+n]) - return - } - for { - if dst >= src+n { - copy(mem[dst:dst+n], mem[src:src+n]) - return - } - // There is some forward overlap. The destination - // will be filled with a repeated pattern of mem[src:src+k]. - // We copy one instance of the pattern here, then repeat. - // Each time around this loop k will double. - k := dst - src - copy(mem[dst:dst+k], mem[src:src+k]) - n -= k - dst += k - } -} |