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

Use the specified file to obtain the temporary Diffie-Hellman parameters.

void use_tmp_dh_file(
    const std::string & filename,
    boost::system::error_code & ec);

This function is used to load Diffie-Hellman parameters into the context from a file.

filename: The name of the file containing the Diffie-Hellman parameters. The file must use the PEM format.
ec: Set to indicate what error occurred, if any.

Calls SSL_CTX_set_tmp_dh.