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C has the following assignement operators:

	= += -= *= /= %= <<= >>= &= ^= |=

= is the obvious one. It takes the result of the expression on the right and assigns it to the variable on the left (lvalue).

	main ()
 {
	 int a, b=4, c=10;
	 a = b + c;
	}

I know this is stating the obvious, but:

1. b is assigned the value 4
2. c is assigned the value 10
3. a is assigned the result of b plus C (14).

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All the other operators act in a simular way. If you find yourself coding the example on the left, it could be changed to the example on the right.

	main ()				main()
	{				{
	 int a=4;			 int a=4;
	 a = a * 4;			 a *= 4;
	}				}

The rule is as follows:

The lvalue is multiplied by the rvalue and the result assigned to the lvalue.

Here is another example.

	main()				main()
	{				{
	 int a=10, b=2;	 int a=10, b=2;
	 a /= b * 5;		 a = a / (b*5);
	}				}

Again both preduce the same answer (1).

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Increment (++) and Decrement (--)
Bit shifting ( >>= <<= )
Operator precedence table.

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Martin Leslie