studycpp

C++17 study notes, featuring self-contained, runnable and testable demos for the standard library, common algorithms, and C++17 features.

Directory Structure

studycpp/
├── CMakeLists.txt
├── src/
│ ├── algorithm/ # Algorithms
│ ├── cpp17/ # C++17 features
│ ├── designpattern/ # Design patterns
│ └── sanitizer/ # Sanitizer tool demonstrations
│ ├── security/ # Cryptography toolkit (OpenSSL 3.x)
│ └── std/ # Standard library
└── tests/ # Google Test unit tests

Source files in each directory are self-contained: .h defines functions, and .cpp contains a main() function for standalone compilation and execution. To add a new module, simply create a pair of .h / .cpp files in the target directory and append an add_executable line in the directory's CMakeLists.txt.

Build and Run

# First-time setup + build
mkdir -p build &&cd build
cmake .. \
-DCMAKE_C_COMPILER=/opt/homebrew/opt/llvm/bin/clang \
-DCMAKE_CXX_COMPILER=/opt/homebrew/opt/llvm/bin/clang++ \
-DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
-DOPENSSL_ROOT_DIR=/opt/homebrew/opt/openssl@3
cmake --build . -j$(sysctl -n hw.ncpu)# Run all tests
ctest --output-on-failure
# Run a specific demo
./src/std/string_demo
./src/algorithm/sort_demo
./src/cpp17/structured_bindings_demo
./src/security/aes_gcm_demo

For subsequent incremental builds:

cd build && cmake --build .

Code Formatting

cmake --build . --target format

Formatting rules are defined in .clang-format (based on Google style, 4-space indentation, line width 100).

Static Analysis (clang-tidy)

cmake --build . --target analyze