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

libs/test/doc/snippet/snippet13.cpp

//  (C) Copyright Gennadiy Rozental 2001-2015.
//  Distributed under the Boost Software License, Version 1.0.
//  (See accompanying file LICENSE_1_0.txt or copy at 
//  http://www.boost.org/LICENSE_1_0.txt)
//
//  See http://www.boost.org/libs/test for the library home page.
//

//[snippet13
#define __BOOST_TEST_MODULE__ const_string test
#include <boost/test/unit_test.hpp>
//]