first-line-indented">This tool is used to check <I>left</I> and <I>right</I> values on closeness 
    using strong relationship defined by the predicate <A href="../floating_point_comparison.html" target="_top">close_at_tolerance 
    </A>( tolerance_src ). To check for the weak relationship use <A href="BOOST_CHECK_PREDICATE.html">BOOST_CHECK_PREDICATE</A> 
    tool. Note that to use this tool you need to include additional header<A href="../../../../../../boost/test/floating_point_comparison.hpp"> 
    fl