Test C++2ltx by producing .dvi or .ps file and previewing it afterwards.
For instance:

*** OS/2 ***
copy ..\C++2ltx.sty .
..\C++2dvi demo.c	or	..\C++2ps demo.c

*** Unix ***
cp ../C++2ltx.sty .
../C++2dvi demo.c	or	../C++2ps demo.c
