AP - C/C++ Programming - Exercise Solutions

Devcontainer

Basic C and C++ devcontainer with cmake, compiler warnings, clang-tidy and clang-format.

Installed tools

• ccache
• clang
• clang-tidy
• clang-format
• cmake
• cppcheck
• lldb
• vcpkg

Supported IDEs

• vscode
• clion

How to use?

vscode

• Configure/build the project using the buttons in the vscode status bar
• Select the target to run in vscode

View > Command Palette... > CMake: Set Launch/Debug Target

• Run/Debug the selected target executable using the buttons in the vscode status bar

Using CLion instead of vscode

1. Settings > Build, Execution, Deployment > Toolchains
   • CMake: Change from Bundled to Custom CMake executable with value /usr/local/bin/cmake
   • Debugger: Change from Bundled GDB to Custom LLDB executable with value /usr/bin/lldb
2. Settings > Build, Execution, Deployment > CMake
   • Delete Debug preset
   • Enable clang-debug and clang-release presets
3. Settings > Build, Execution, Deployment > Dynamic Analysis Tools > Sanitizers
   • LeakSanitizer: Set LSAN_OPTIONS field to detect_leaks=0 (disables leak detection, required for running with the debugger)

Adding libraries and executables

• Create a new directory for each module in the src directory
• Add CMakeLists.txt in the new directory

cpprog_add_library(
    TARGET exercise_1_lib   # library will be called exercise_1_lib
    CXX_MODULES             # module source files here
    "my_module_1.cpp"
    "my_module_2.cpp"
    DEPENDENCIES            # libraries on which the library depends
    datetime
)

cpprog_add_executable(
    TARGET exercise_1       # executable will be called exercise_1
    CXX_MODULES             # module source files here
    "my_module_1.cpp"
    "my_module_2.cpp"
    CXX_SOURCES             # old-style source files here
    "main.cpp"
    DEPENDENCIES            # libraries on which the exercise depends
    exercise_1_lib
)

• Add the new directory to the src/CMakeLists.txt file after the line add_subdirectory(cpprog)

add_subdirectory(my_new_directory)

• Configure/build the project using the buttons in the vscode status bar
• Select the target to run in vscode

View > Command Palette... > CMake: Set Launch/Debug Target

• Run/Debug the selected target executable using the buttons in the vscode status bar
• Add unittest source files to the test directory
• Add unittests to the test/CMakeListst.txt file

cpprog_add_test(
    TARGET test_exercise_1  # test will be called test_exercise_1
    CXX_SOURCES             # unittest source files
    "my_module_1.test.cpp"
    DEPENDENCIES            # libraries on which the test depends
    exercise_1_lib
)

• Run test from the Testing activity in the vscode action bar
• View test results in the Test Results tab in the vscode bottom panel