Function realpath

Source/kwsys/SystemTools.cxx:264–277

BeOS 5 also doesn't have realpath(), but its C++ API offers something close.

// BeOS 5 also doesn't have realpath(), but its C++ API offers something close.
static inline char* realpath(char const* path, char* resolved_path)
{
  size_t const maxlen = KWSYS_SYSTEMTOOLS_MAXPATH;
  snprintf(resolved_path, maxlen, "%s", path);
  BPath normalized(resolved_path, nullptr, true);
  char const* resolved = normalized.Path();
  if (resolved) // nullptr == No such file.
  {
    if (snprintf(resolved_path, maxlen, "%s", resolved) < maxlen) {
      return resolved_path;
    }
  }
  return nullptr; // something went wrong.
}
#endif

#ifdef _WIN32