Lambda facility</> <para> <firstterm>Lambda expressions</> is a way of inline meta-function composition. building more complex, more interesting functions from the existing ones. The simplest case of function composition is an operation of taking the result from one function (<literal>g</>) and using that as the argument to another function (<literal>f</>) - <literal>f(g(x))</>. [Talk about run-time &Cxx; facilities to do function composition in &Cxx; - SGI STL <literal>compose1</>/<literal>compose2</>, Boost Compose library, Boost Bind library] </> <para> The library provide support for several styles of function composition. The facilities differ in portability, implementation complexity, readability, and performance characteristics. </>  <section id="bind.compose"> <title>compose</> <programlisting> <![CDATA[ using mpl::placeholders; typedef mpl::bind< mpl::make_f2<boost::is_same>,int,_2 > is_int; typedef mpl::bind< add_pointer,mpl::bind<add_const,_1> > add_const

Lambda facility</> <para> <firstterm>Lambda expressions</> is a way of inline meta-function composition. building more complex, more interesting functions from the existing ones. The simplest case of function composition is an operation of taking the result from one function (<literal>g</>) and using that as the argument to another function (<literal>f</>) - <literal>f(g(x))</>. [Talk about run-time &Cxx; facilities to do function composition in &Cxx; - SGI STL <literal>compose1</>/<literal>compose2</>, Boost Compose library, Boost Bind library] </> <para> The library provide support for several styles of function composition. The facilities differ in portability, implementation complexity, readability, and performance characteristics. </>  <section id="bind.compose"> <title>compose</> <programlisting> <![CDATA[ using mpl::placeholders; typedef mpl::bind< mpl::make_f2<boost::is_same>,int,_2 > is_int; typedef mpl::bind< add_pointer,mpl::bind<add_const,_1> > add_const_pointer; ]]> </> </section> </section>