Example RapidJSON and Filesystem

The program expects one command line arg: a path to a folder that contains files.

A few things to notice:

• the cMakeLists.txt file includes a few new statements:

  • file (COPY ...) - this copies the rapidjson folder from the src directory into the build directory.
  • include_directories(rapidjson) - this makes the files in the rapidjson directory act like files on the system include path. This means you can include them with <> and not "".
  • set (CMAKE_CXX_STANDARD_LIBRARIES -lstdc++fs) - this tells the linker to link against the file system library.

• The main.cpp includes #include <experimental/filesystem>. In C++ 14, the filesystem lib is part of an experimental set of features. It isn't taken out of experimental until C++ 17. But the version of gcc that we are using isn't fully C++17 compliant.