Implements loading of proto files

src/CMakeLists.txt

@@ -0,0 +1,6 @@
+
+set(assignment_SOURCES
+  main.cpp)
+
+add_executable(main ${assignment_SOURCES})
+target_link_libraries(main proto ${PROTOBUF_LIBRARY})

src/main.cpp

@@ -0,0 +1,40 @@
+#include <fstream>
+#include <iostream>
+
+#include "protocol_buffers_definitions/recordings.pb.h"
+
+
+using namespace ::indoors::proto;
+
+int main(int argc, char* argv[])
+{
+  // Verify that the version of the library that we linked against is
+  // compatible with the version of the headers we compiled against.
+  GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+  std::cout << "ESRI C++ code assignment\n";
+
+  Recording recording;
+  Position positions;
+
+  std::fstream input(argv[1], std::ios::in | std::ios::binary);
+  if (!recording.ParseFromIstream(&input)) {
+    std::cerr << "Failed to parse input file.\n";
+    return -1;
+  }
+  std::cout.precision(17);
+  for (int i=0; i < recording.magnetics_size(); i++) {
+    auto const& s = recording.magnetics(i);
+    std::cout << s.t() << ": [" << s.x() << ", " << s.y() << ", " << s.z() << "]\n";
+  }
+  for (int i=0; i < recording.positions_size(); i++) {
+    auto const& s = recording.positions(i);
+    std::cout << s.t() << ": [" << s.x() << ", " << s.y() << "]\n";
+  }
+
+  // Optional:  Delete all global objects allocated by libprotobuf.
+  google::protobuf::ShutdownProtobufLibrary();
+
+  return 0;
+}
+