Remove usage of "using namespace std;"

DroneServer/main.cpp

@@ -7,7 +7,6 @@
 #include "vehicles/multirotor/firmwares/mavlink/MavLinkMultirotorApi.hpp"
 #include "common/Settings.hpp"
 
-using namespace std;
 using namespace msr::airlib;
 
 /*
@@ -21,7 +20,7 @@ int main(int argc, const char* argv[])
     if (argc != 2) {
         std::cout << "Usage: " << argv[0] << " is_simulation" << std::endl;
         std::cout << "\t where is_simulation = 0 or 1" << std::endl;
-        cout << "Start the DroneServer using the 'PX4' settings in ~/Documents/AirSim/settings.json." << endl;
+        std::cout << "Start the DroneServer using the 'PX4' settings in ~/Documents/AirSim/settings.json." << std::endl;
         return 1;
     }
 

DroneShell/src/main.cpp

@@ -24,7 +24,6 @@ namespace msr
 namespace airlib
 {
 
-    using namespace std;
     using namespace common_utils;
 
     struct CommandContext
@@ -403,7 +402,7 @@ namespace airlib
                 }
             }
             if (path.size() == 0) {
-                std::cout << "incomplete path, please provide at least 3 numbers defining a 3d point" << endl;
+                std::cout << "incomplete path, please provide at least 3 numbers defining a 3d point" << std::endl;
                 return false;
             }
 
@@ -1294,7 +1293,7 @@ See RecordPose for information about log file format")
                 auto image = context->client.simGetImage("0", imageType);
 
                 if (image.size() == 0) {
-                    std::cout << "error getting image, check sim for error messages" << endl;
+                    std::cout << "error getting image, check sim for error messages" << std::endl;
                     return;
                 }
 
@@ -1322,12 +1321,12 @@ See RecordPose for information about log file format")
                 std::string imageName = Utils::stringf("%s_%s%d.png", baseName.c_str(), typeName, image_index_++);
                 std::string file_path_name = FileSystem::combine(path, imageName);
 
-                ofstream file;
+                std::ofstream file;
                 FileSystem::createBinaryFile(file_path_name, file);
                 file.write(reinterpret_cast<const char*>(image.data()), image.size());
                 file.close();
 
-                std::cout << "Image saved to: " << file_path_name << " (" << image.size() << " bytes)" << endl;
+                std::cout << "Image saved to: " << file_path_name << " (" << image.size() << " bytes)" << std::endl;
 
                 context->sleep_for(pause_time / 1000);
             }
@@ -1359,7 +1358,7 @@ See RecordPose for information about log file format")
                 imageType = ImageCaptureBase::ImageType::DisparityNormalized;
             }
             else {
-                cout << "Error: Invalid image type '" << type << "', expecting either 'depth', 'scene' or 'segmentation'" << endl;
+                std::cout << "Error: Invalid image type '" << type << "', expecting either 'depth', 'scene' or 'segmentation'" << std::endl;
                 return true;
             }
 

docs/apis_cpp.md

@@ -3,9 +3,11 @@
 Please read [general API doc](apis.md) first if you haven't already. This document describes C++ examples and other C++ specific details.
 
 ## Quick Start
+
 Fastest way to get started is to open AirSim.sln in Visual Studio 2019. You will see [Hello Car](https://github.com/Microsoft/AirSim/tree/master/HelloCar/) and [Hello Drone](https://github.com/Microsoft/AirSim/tree/master/HelloDrone/) examples in the solution. These examples will show you the include paths and lib paths you will need to setup in your VC++ projects. If you are using Linux then you will specify these paths either in your [cmake file](https://github.com/Microsoft/AirSim/tree/master/cmake//HelloCar/CMakeLists.txt) or on compiler command line.
 
 #### Include and Lib Folders
+
 * Include folders: `$(ProjectDir)..\AirLib\deps\rpclib\include;include;$(ProjectDir)..\AirLib\deps\eigen3;$(ProjectDir)..\AirLib\include`
 * Dependencies: `rpc.lib`
 * Lib folders: `$(ProjectDir)\..\AirLib\deps\MavLinkCom\lib\$(Platform)\$(Configuration);$(ProjectDir)\..\AirLib\deps\rpclib\lib\$(Platform)\$(Configuration);$(ProjectDir)\..\AirLib\lib\$(Platform)\$(Configuration)`
@@ -62,23 +64,22 @@ Here's how to use AirSim APIs using C++ to control simulated quadrotor (see also
 
 int main()
 {
-    using namespace std;
     msr::airlib::MultirotorRpcLibClient client;
 
-    cout << "Press Enter to enable API control" << endl; cin.get();
+    std::cout << "Press Enter to enable API control\n"; std::cin.get();
     client.enableApiControl(true);
 
-    cout << "Press Enter to arm the drone" << endl; cin.get();
+    std::cout << "Press Enter to arm the drone\n"; std::cin.get();
     client.armDisarm(true);
 
-    cout << "Press Enter to takeoff" << endl; cin.get();
+    std::cout << "Press Enter to takeoff\n"; std::cin.get();
     client.takeoffAsync(5)->waitOnLastTask();
 
-    cout << "Press Enter to move 5 meters in x direction with 1 m/s velocity" << endl; cin.get();  
+    std::cout << "Press Enter to move 5 meters in x direction with 1 m/s velocity\n"; std::cin.get();
     auto position = client.getMultirotorState().getPosition(); // from current location
     client.moveToPositionAsync(position.x() + 5, position.y(), position.z(), 1)->waitOnLastTask();
 
-    cout << "Press Enter to land" << endl; cin.get();
+    std::cout << "Press Enter to land\n"; std::cin.get();
     client.landAsync()->waitOnLastTask();
 
     return 0;
@@ -86,8 +87,8 @@ int main()
 ```
 
 ## See Also
+
 * [Examples](https://github.com/microsoft/AirSim/tree/master/Examples) of how to use internal infrastructure in AirSim in your other projects
 * [DroneShell](https://github.com/microsoft/AirSim/tree/master/DroneShell) app shows how to make simple interface using C++ APIs to control drones
 * [HelloSpawnedDrones](https://github.com/microsoft/AirSim/tree/master/HelloSpawnedDrones) app shows how to make additional vehicles on the fly
 * [Python APIs](apis.md)
-