Drizzled Public API Documentation

ioutil.h
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4  * Copyright (C) 2009 Sun Microsystems, Inc.
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19 
20 #pragma once
21 
22 #include <iosfwd>
23 #include <string>
24 
25 namespace drizzled
26 {
27 namespace message
28 {
29 namespace ioutil
30 {
31 
37  template <class FwdIter> class joiner {
38  friend std::ostream& operator<<(std::ostream& out, const joiner& j) {
39  j.write(out);
40  return out;
41  }
42 
43  public:
44  explicit joiner(const std::string& separator, FwdIter start, FwdIter finish)
45  : m_sep(separator), m_start(start), m_finish(finish)
46  { }
47 
48 
49  private:
50  std::string m_sep;
51  FwdIter m_start, m_finish;
52 
53  void write(std::ostream& out) const {
54  if (m_start == m_finish)
55  return;
56 
57  FwdIter fi = m_start;
58  while (true) {
59  out << *fi;
60  if (++fi == m_finish)
61  break;
62  out << m_sep;
63  }
64  }
65  };
66 
67 
78  template <class FwdIter>
80  join(const std::string& delim, FwdIter start, FwdIter finish) {
81  return joiner<FwdIter>(delim, start, finish);
82  }
83 
85  template <class Container>
86  joiner<typename Container::const_iterator>
87  join(const std::string& delim, Container seq) {
88  typedef typename Container::const_iterator FwdIter;
89  return joiner<FwdIter>(delim, seq.begin(), seq.end());
90  }
91 
92 } /* namespace ioutil */
93 } /* namespace message */
94 } /* namespace drizzled */
95 
TODO: Rename this file - func.h is stupid.