[section Organization]

The library is organized into layers of modules, with each module addressing a particular
area of responsibility. A module may not depend on modules in higher layers.

The library is organized in three layers:

[heading Layers]

[:[$images/fusion_org.png]]

The entire library is found in the "boost/fusion" directory. Modules are 
organized in directories. Each module has its own header file placed in the 
same directory with the actual module-directory. For example, there exists 
"boost/fusion/support.hpp" in the same directory as "boost/fusion/support". 
Everything, except those found inside "detail" directories, is public. The 
library is header-only. There is no need to build object files to link 
against.

[heading Directory]

* tuple
* algorithm
    * iteration
    * query
    * transformation
* sequence
    * adapted
        * array
        * mpl
        * std_pair
    * comparison
    * container
        * list
        * map
        * set
        * vector
    * conversion
    * generation
    * intrinsic
    * io
    * utility
    * view
        * filter_view
        * iterator_range
        * joint_view
        * reverse_view
        * single_view
        * transform_view
        * zip_view
* iterator
* support

[heading Example]

If, for example, you want to use `list`, depending on the granularity that 
you desire, you may do so by including one of

    #include <boost/fusion/sequence.hpp>
    #include <boost/fusion/sequence/container.hpp>
    #include <boost/fusion/sequence/container/list.hpp>
    
The first includes all sequences. The second includes all of sequence 
containers. The third includes only `list` [footnote Modules may contain 
smaller components. Header file information for each component will be 
provided as part of the component's documentation.].

[endsect]