Installing CPR Library

The examples require the CPR library for making HTTP requests to the GitHub API.

Option 1: Install via Package Manager (Recommended)

Ubuntu/Debian

sudo apt-get update
sudo apt-get install libcpr-dev

macOS (Homebrew)

brew install cpr

Arch Linux

sudo pacman -S cpr

Option 2: Build from Source

# Clone cpr
git clone https://github.com/libcpr/cpr.git
cd cpr

# Build and install
mkdir build && cd build
cmake .. -DCPR_USE_SYSTEM_CURL=ON
make
sudo make install

Option 3: Using vcpkg

vcpkg install cpr

Option 4: Using Conan

conan install cpr/1.10.5@

Compilation

Once cpr is installed, compile the examples:

# Legacy example
clang++ -std=c++20 -I../include -I.. github_legacy.cpp -lcpr -lcurl -o github_legacy_demo

# Modern example (requires Bloomberg clang)
clang++ -std=c++26 -freflection -DSIMDJSON_STATIC_REFLECTION=1 \
        -I../include -I.. github_modern.cpp -lcpr -lcurl -o github_modern_demo

Troubleshooting

If you get "cpr/cpr.h not found", check:

pkg-config --cflags --libs cpr
Add include path: -I/usr/local/include
Add library path: -L/usr/local/lib

For SSL issues, ensure OpenSSL is installed:

Ubuntu/Debian: sudo apt-get install libssl-dev
macOS: brew install openssl
Link OpenSSL: -lssl -lcrypto

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