LSSTApplications  18.1.0
LSSTDataManagementBasePackage
versions.cc
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1 #include <cstddef>
2 #include <cstdlib>
3 
4 #include <sstream>
5 
6 #include "lsst/base/library.h"
7 #include "lsst/base/versions.h"
8 
9 namespace lsst {
10 namespace base {
11 
12 namespace {
13 
14 typedef std::string (*VersionGetter)(void);
15 
16 // List of packages and how to determine the version
18  {"cfitsio", getCfitsioVersion},
19  {"fftw", getFftwVersion},
20  {"wcslib", getWcslibVersion},
21  {"gsl", getGslVersion},
22 };
23 
24 } // anonymous namespace
25 
27 {
28  typedef float (GetVersion)(float*);
29  float version;
30  loadSymbol<GetVersion>("libcfitsio", "ffvers")(&version);
31 
32  std::stringstream ss(std::stringstream::in | std::stringstream::out);
33  ss << version;
34  return ss.str();
35 }
36 
38 {
39  return std::string(loadSymbol<char const>("libfftw3", "fftw_version"));
40 }
41 
43 {
44  typedef char const* (GetVersion)(int[]);
45  return std::string(loadSymbol<GetVersion>("libwcs", "wcslib_version")(NULL));
46 }
47 
49 {
50  return std::string(*loadSymbol<char const*>("libgsl", "gsl_version"));
51 }
52 
53 
55 {
57  for (auto&& pkg : packages) {
58  try {
59  versions[pkg.first] = pkg.second();
60  } catch (LibraryException const&) {
61  // Can't find the module, so ignore it
62  }
63  }
64  return versions;
65 }
66 
67 
68 }} // namespace lsst::base
std::string getCfitsioVersion()
Definition: versions.cc:26
Unable to load library.
Definition: library.h:16
std::string getFftwVersion()
Definition: versions.cc:37
std::map< std::string, std::string > getRuntimeVersions()
Return version strings for dependencies.
Definition: versions.cc:54
STL class.
std::string getWcslibVersion()
Definition: versions.cc:42
STL class.
A base class for image defects.
T str(T... args)
table::Key< int > version
Definition: PhotoCalib.cc:402
std::string getGslVersion()
Definition: versions.cc:48