Main Index : Reference :

Operators

These are the available operators in C.O.F.F.E.E.:

	Symbol	Explanation	Example
Math	*	Multiply	2 * 3 = 6
	/	Divide	6 / 3 = 2
	%	Remainder	5 % 16 = 1
	+	Add	3 + 2 = 5
	-	Subtract	3 - 2 = 1
	-	Unary minus	-5 * 3 = -15
Assignment	=	Assignment	var a = 3
	+=, etc.	Compound assignment (the left-hand side is used as the first operand)	i += 1 means i = i + 1
Relational	==	Equal (TRUE if the operands have the same value)	3 == 3
	!=	Not equal (TRUE if the operands differ)	6 != 8
	<	Less than (TRUE if the first operand's value is less than the second's)	5 < 10
	<=	Less than or equal to (TRUE if the first operand's value is less than or equal to the second's)	4 <= 5
	<	Greater than (TRUE if the first operand's value is greater than the second's)	5 > 1
	<=	Greater than or equal to (TRUE if the first operand's value is greater than or equal to the second's)	4 <= 3
Logical	!	Logical NOT (TRUE if the operand is FALSE)	if (!ok) return
	&&	Logical AND (TRUE if both operands are TRUE)	2 < 3 && 4 == 4
	||	Logical OR (TRUE if either operand is TRUE)	4 < 5 || 4 >= 5
Increment	++	Post-increment (increases the operand's value but returns the original value)	i++
	++	Pre-increment (increases the operand's value and returns the new value)	++i
Decrement	--	Post-decrement (decreases the operand's value but returns the original value)	i--
	--	Pre-decrement (decreases the operand's value and returns the new value)	--i
Bitwise	~	Bitwise NOT	~0x2B = 0xD4
	&	Bitwise AND	0x2B & 0xF1 = 0x21
	|	Bitwise OR	0x2B | 0xF1 = 0xFB
	^	Bitwise XOR	0x2B ^ 0xF1 = 0xDA
	<<	Bitwise left shift	0x2B << 2 = 0xAC
	>>	Bitwise right shift	0x2B >> 2 = 0x0A
Other	? :	Conditional (returns the middle operand's value if the first operand is TRUE, otherwise returns the right operand's value)	1 ? "yes" : "no"
	()	Parentheses	(5 + 3) * 7 = 56
	[]	Array-element	a[0]
	->	Member access	obj->Move()
	.	Vector access	v.x
	&	Reference (passes a variable by reference to a function, so that the function accesses the variable directly)	function(&x)

Operator Precedence

	Symbol	Meaning
Highest Precedence	()	Parentheses
	++	Post-increment
	--	Post-decrement
	[]	Array-element
	->	Member access
	.	Vector access
	++	Pre-increment
	--	Pre-decrement
	!	Logical NOT
	~	Bitwise NOT
	-	Unary minus
	*	Multiply
	/	Divide
	%	Remainder
	+	Add
	-	Subtract
	<<	Bitwise left shift
	>>	Bitwise right shift
	<	Less than
	<=	Less than or equal to
	<	Greater than
	<=	Greater than or equal to
	==	Equal
	!=	Not equal
	&	Bitwise AND
	^	Bitwise XOR
	|	Bitwise OR
	&&	Logical AND
	||	Logical OR
	? :	Conditional
	=	Assignment
Lowest Precedence	+=, etc.	Compound assignment