Statements in C, like statements in any other programming language, consist almost entirely of expressions and special reserved words. Declarations in C, unlike declarations in other languages, also contain arbitrary expressions. Thus, studying the means by which C expressions are constructed and evaluated is especially important-particularly since the number of permissible C operators is so large. Since all of the operands in a C expression (excluding constants) must be properly declared before they are used, and since declarations themselves contain expressions, the teaching of C involves...