Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Add a directory containing certification authority files to be used for performing verification.

boost::system::error_code add_verify_path(
    impl_type & impl,
    const std::string & path,
    boost::system::error_code & ec);