Treating debug output as ostream object

[Adron]

Well, for example I will use the GNU and AT&T:

*Each comes with its own set of header files to be included. In both
 versions, if it can't find a C++ header file, it will fall back on the
 corresponding C header file (which may not work as expected).
* The syntax of the "new" statement differs slightly between the two versions.

Two small, but imporant differences.

Elaborate on those please? Like what exactly is the syntax difference for new?