RealPath.h revision 533eae20118036f425f27bf0536ef0ccbb090b65 
1//===- RealPath.h ---------------------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#ifndef MCLD_SUPPORT_REALPATH_H
10#define MCLD_SUPPORT_REALPATH_H
11#include "mcld/Support/Path.h"
12#include <string>
13
14namespace mcld {
15namespace sys  {
16namespace fs   {
17
18/** \class RealPath
19 *  \brief The canonicalized absolute pathname.
20 *
21 */
22class RealPath : public Path
23{
24public:
25  typedef Path::ValueType  ValueType;
26  typedef Path::StringType StringType;
27
28public:
29  RealPath();
30  explicit RealPath(const ValueType* s );
31  explicit RealPath(const StringType &s );
32  explicit RealPath(const Path& pPath);
33
34  ~RealPath();
35
36  RealPath& assign(const Path& pPath);
37
38protected:
39  void initialize();
40};
41
42} // namespace of fs
43} // namespace of sys
44} // namespace of mcld
45
46//-------------------------------------------------------------------------//
47//                              STL compatible functions                   //
48//-------------------------------------------------------------------------//
49namespace std {
50
51template<>
52struct less<mcld::sys::fs::RealPath> : public binary_function<
53                                                     mcld::sys::fs::RealPath,
54                                                     mcld::sys::fs::RealPath,
55                                                     bool>
56{
57  bool operator() (const mcld::sys::fs::RealPath& pX,
58                   const mcld::sys::fs::RealPath& pY) const {
59    if (pX.native().size() < pY.native().size())
60      return true;
61    return (pX.native() < pY.native());
62  }
63};
64
65} // namespace of std
66
67
68#endif
69
70