Compound Assignment

  This feature is simpler in Scriptol than in any other language. This designates the case you want to assign a variable, an expression that modifies the same variable. For example, adding 10 to x and putting the result into x.
Rather than writing x = x + 10, write simply: x + 10
In a conditional test, x + 10 returns just the result of 10 added to the content of x, without to modify x. But if this is a statement, the result will be assigned to x.

Compound assignments may work with these operators:

+
  - 


mod

<<
>>
&
|
^
addition
substraction
multiplication
division
modulo
binary left shifting
binary right shifting
binary and
binary or
binary complement


Examples:
x + 1       ...increments the content of x by 1.
x * y        ...replaces the content of x by the result of x * y.
a & b      ...replaces the array a by the intersection of a and b.


Example of compound assignment same as:
x = x + 10
int x = 10
x + 10
print x
Display: > 20

This is not a compound assigment, x is not modified. int x = 10
print x + 10
print x
Display: > 20
> 10

 Exercises
1) Here is a list of assignments. Write them in the shortest form possible.

x = x + 10
y = y * 2
x = x / (y + 38)

Answer