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4.6.3 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 non-negative)
< , > , <= , >= , == , <>
- 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, 2-i, 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
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