what's an expression and expression statement in c++?

Question

I\'ve read that usually statements in c++ end with a semi-colon; so that might help explain what an expression statement would be. But then what would you call an expression

Answer 1

According to The C++ Programming Language by Bjarne Stroustrup Special(3rd) Edition, a statement is basically any declaration, function call, assignment, or conditional. Though, if you look at the grammar, it is much more complicated than that. An expression, in simple terms, is any math or logical operation(s).

The wikipedia links that ok posted in his answer can be of help too.