Hi,<br />I have two questions regarding concept checking.<br />The first is whether BOOST_CONCEPT_REQUIRES can be used for constructors and how.<br
/>The second is to know if it's possible to specialize templates, or perform conditional compilation in some way,<br />for object implementing some
concept or not.<br />For example, if I have an algorithm for directed graphs that requires IncidenceGraphConcept,<br />can I specialize the code for
graphs that implement BidirecionalGraphConcept?<br />Thanks,<br /><br />Juan Farr&eacute;