[Boost-users] Is there a way for a library to add symbols to the standard headers ?

Subject: [Boost-users] Is there a way for a library to add symbols to the standard headers ?
From: Timothy Madden (terminatorul_at_[hidden])
Date: 2010-09-01 17:16:52

Hello

To write a library to add a POSIX emulation layer on Windows, is there a 
way to add symbols from my library to C/C++ standard library headers, 
without getting into recursive inclusion ?

For example, is there a way to get the 'Additions to fstream' from the 
boost::filesystem library, actually look like they are added to the 
standard <fstream> header ?

I know users can use #include "cstdio" (with quotes instead of brackets) 
throughout a project, in order to later be able to include some local 
version of the header, if the need for it arise during during some 
porting at a later time for example.

However this works for user-level code, while for a library it is not 
that simple any more ...

Thank you,
Timothy Madden