you debug/warning message just as c++ streams which make them very convinient
to use. Once this is stabilize I will change the ostringstrem to be
redirected to a file (ofstream).
+ * Properly support C99 extension: __FUNCTION__ which allow us to display
+ the name of the function call (GNUC also allow __PRETTY_FUNCTION__ for c++)
2005-01-07 Jean-Pierre Roux <jpr@creatis.univ-lyon1.fr>
* Removal of useless and dangerous methods :