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                   [boost.png"] Boost
= Conversion Library

   
= 

   The  Conversion  Library  improves  program  safety  and  clarity by    performing
= otherwise messy conversions.  It includes cast-style function
   = templates designed to complement the C++
= Standard's built-in casts.
   

   To  reduce coupling, particularly to standard library IOStreams, the    Boost
= Conversion Library is
= supplied by several headers:
   
   
=  
     * The  [1]boost/cast  header  provides  = polymorphic_cast<>
= and
       polymorphic_downcast<> to perform safe casting between
= polymorphic
       types.
       
=   
=  
     * The [2]boost/lexical_cast header = provides lexical_cast<>
= general
       literal text conversions, such as an int = represented as
= a string,
       or vice-versa.
     * The [3]boost/implicit_cast header = provides implicit_cast<> which is
       used when the source type = is implicitly convertible to the target
       type,  to  force the implicit = conversion. It's less liberal than
       static_cast, which will convert in = the opposite direction..
       
=  

   
     _________________________________________________________________

   

   Revised Jan 25, 2006
   
= 
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References

   1. file://localhost/tmp/3D"cast.htm"
   2. file://localhost/tmp/3D"lexical_cast.htm"
   3. file://localhost/tmp/boost/implicit_cast.hpp"