https://svn.boost.org/trac10/ticket/212 <pre class="wiki">when , I include the file regex.hpp, then i can't use the standard c library unless I go std::strcat ect... My question is , how does boost make this happen, since i change all my calls to the stanard C library to include std::, and I don't need boost any more. Simply included boost is not a wise solution, I wonder is there a way to do this on my own without boost or regex.hpp to be exact. my email address is vbmew@hotmail.com -thank you </pre> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/212 Trac 1.4.3 Vladimir Prus Wed, 28 Apr 2004 09:04:18 GMT https://svn.boost.org/trac10/ticket/212#comment:1 https://svn.boost.org/trac10/ticket/212#comment:1 <ul> <li><strong>status</strong> <span class="trac-field-old">assigned</span> → <span class="trac-field-new">closed</span> </li> </ul> <pre class="wiki">Logged In: YES user_id=321498 I'm afraid, this question has nothing to do with boost, in a general namespace question. I suggest asking in some C++ newsgroup (e.g. comp.lang.c++). Hint: #include &lt;stdlib.h&gt; allows you to call C functions without std::, while #include &lt;cstdlib&gt; does not. </pre> Ticket