xref: /llvm-project/clang/lib/Basic/Version.cpp (revision 4c25ce723f0a0b32ae5788307e5993defd4f7209)
1 //===- Version.cpp - Clang Version Number -----------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines several version-related utility functions for Clang.
11 //
12 //===----------------------------------------------------------------------===//
13 #include <cstring>
14 #include <cstdlib>
15 using namespace std;
16 
17 namespace clang {
18 
19 const char *getClangSubversionPath() {
20   static const char *Path = 0;
21   if (Path)
22     return Path;
23 
24   static char URL[] = "$URL$";
25   char *End = strstr(URL, "/lib/Basic");
26   if (End)
27     *End = 0;
28 
29   End = strstr(URL, "/clang/tools/clang");
30   if (End)
31     *End = 0;
32 
33   char *Begin = strstr(URL, "cfe/");
34   if (Begin) {
35     Path = Begin + 4;
36     return Path;
37   }
38 
39   Path = URL;
40   return Path;
41 }
42 
43 
44 unsigned getClangSubversionRevision() {
45 #ifndef SVN_REVISION
46   // Subversion was not available at build time?
47   return 0;
48 #else
49   return strtol(SVN_REVISION, 0, 10);
50 #endif
51 }
52 
53 } // end namespace clang
54