RealPath.h revision 37b74a387bb3993387029859c2d9d051c41c724e 
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
13#include <string>
14
15namespace mcld {
16namespace sys {
17namespace fs {
18
19/** \class RealPath
20 *  \brief The canonicalized absolute pathname.
21 *
22 */
23class RealPath : public Path {
24 public:
25  typedef Path::ValueType ValueType;
26  typedef Path::StringType StringType;
27
28 public:
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
38 protected:
39  void initialize();
40};
41
42}  // namespace fs
43}  // namespace sys
44}  // namespace mcld
45
46//----------------------------------------------------------------------------//
47//                              STL compatible functions                      //
48//----------------------------------------------------------------------------//
49namespace std {
50
51template <>
52struct less<mcld::sys::fs::RealPath>
53    : public binary_function<mcld::sys::fs::RealPath,
54                             mcld::sys::fs::RealPath,
55                             bool> {
56  bool operator()(const mcld::sys::fs::RealPath& pX,
57                  const mcld::sys::fs::RealPath& pY) const {
58    if (pX.native().size() < pY.native().size())
59      return true;
60    return (pX.native() < pY.native());
61  }
62};
63
64}  // namespace std
65
66#endif  // MCLD_SUPPORT_REALPATH_H_
67