Silvan wrote:

!= is C/C++ (and probably other languages) for "not equals."

Indeed. Works in C and in C++, too. ;-)

Same as '' in at least some versions of BASIC and .NE. in
FORTRAN II and IV.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/solar.html