
4.5.3 int operations
++
 changes its operand to its successor, is itself no int expression

 changes its operand to its predecessor, is itself no int expression
+
 addition

 negation or subtraction
*
 multiplication
div
 integer division (omitting the remainder), rounding toward 0
% , mod
 integer modulo (the remainder of the division
^ , **
 exponentiation (exponent must be nonnegative)
< , > , <= , >= , == , <>
 comparators
Note: An assignment j=i++; or j=i; is not allowed,
in particular it does not change
the value of j , see Limitations.
Example:
 int i=1;
int j;
i++; i; i; i;
==> 2
==> 1
// ++ and  do not return a value as in C, cannot assign
j = i++;
==> // ** right side is not a datum, assignment ignored
==> // ** in line >> j = i++;<<
// the value of j is unchanged
j; i;
==> 0
==> 2
i+2, 2i, 5^2;
==> 4 0 25
5 div 2, 8%3;
==> 2 2
5 div 2, 5 mod 2, 5 % 2;
==> 2 1 1
1<2, 2<=2;
==> 1 1

