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-rw-r--r--doc/progs/slices.go63
1 files changed, 0 insertions, 63 deletions
diff --git a/doc/progs/slices.go b/doc/progs/slices.go
deleted file mode 100644
index 967a3e76bd..0000000000
--- a/doc/progs/slices.go
+++ /dev/null
@@ -1,63 +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 main
-
-import (
- "io/ioutil"
- "regexp"
-)
-
-func AppendByte(slice []byte, data ...byte) []byte {
- m := len(slice)
- n := m + len(data)
- if n > cap(slice) { // if necessary, reallocate
- // allocate double what's needed, for future growth.
- newSlice := make([]byte, (n+1)*2)
- copy(newSlice, slice)
- slice = newSlice
- }
- slice = slice[0:n]
- copy(slice[m:n], data)
- return slice
-}
-
-// STOP OMIT
-
-// Filter returns a new slice holding only
-// the elements of s that satisfy fn.
-func Filter(s []int, fn func(int) bool) []int {
- var p []int // == nil
- for _, i := range s {
- if fn(i) {
- p = append(p, i)
- }
- }
- return p
-}
-
-// STOP OMIT
-
-var digitRegexp = regexp.MustCompile("[0-9]+")
-
-func FindDigits(filename string) []byte {
- b, _ := ioutil.ReadFile(filename)
- return digitRegexp.Find(b)
-}
-
-// STOP OMIT
-
-func CopyDigits(filename string) []byte {
- b, _ := ioutil.ReadFile(filename)
- b = digitRegexp.Find(b)
- c := make([]byte, len(b))
- copy(c, b)
- return c
-}
-
-// STOP OMIT
-
-func main() {
- // place holder; no need to run
-}