github.com/spotify/syslog-redirector-golang@v0.0.0-20140320174030-4859f03d829a/blog/content/slices/prog050.go (about)

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  )
    10  
    11  type path []byte
    12  
    13  func (p path) ToUpper() {
    14  	for i, b := range p {
    15  		if 'a' <= b && b <= 'z' {
    16  			p[i] = b + 'A' - 'a'
    17  		}
    18  	}
    19  }
    20  
    21  func main() {
    22  	pathName := path("/usr/bin/tso")
    23  	pathName.ToUpper()
    24  	fmt.Printf("%s\n", pathName)
    25  }