https://svn.boost.org/trac10/ticket/6116 <p> In boost/iostreams/chain.hpp on line 322 (of version 1.46 and others) there is a variable named "null". While that is legal C++, it is unfortunately all too common for people to place something like "#define null 0" somewhere else in their code base. It would be nice if that variable name could be made something like "null_device" which is less likely to cause a problem due to other code. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/6116 Trac 1.4.3