Method IsValid

Source/cmFileTimes.h:24–24

@return true, if file times were loaded successfully

  //! @return true, if file times were loaded successfully
  bool IsValid() const { return (this->times != nullptr); }
  //! Try to load the file times from @a fileName and @return IsValid()
  cmsys::Status Load(std::string const& fileName);
  //! Stores the file times at @a fileName (if IsValid())