Operators

Unary Operators

Unary operators appear before the operand in Whistle and modifies it in a set way:

operator operand

For exampe -10 where - is the operator and 10 is the operand.

precedence	operator	operand type	description
0	-	Signed Number	The arithmetic negate operator negates the sign of the operand
0	!	Boolean	The logical not operator inverts the operand
0	~	Integer	The bitwise not operator inverts the bits of the operand

Binary Operators

Binary operators appear between to operands:

operand operator operand

For exampe 5 - 10 where - is the operator, 5 and 10 is the operands.

Arithmetic Operators

precedence	operand	operator	operand	description
1	Number	**	Number	The exponentiation operator calculates the left operands to the power of the right
2	Number	*	Number	The multiplication operator multiplies the operands
2	Number	/	Number	The division operator divides the operands
2	Number	%	Number	The modulo operator calculates the remainder operands
3	Number	+	Number	The addition operator adds the operands
3	Number	-	Number	The subtraction operator subtracts the operands

String Operators

precedence	operand	operator	operand	description
3	String	+	String	Concatinates the right operand to the left

Comparison Operators

precedence	operand	operator	operand	description
5	Any	>=	Any	Is the left operand greater than or equal to the right operand?
5	Any	>	Any	Is the left operand greater than the right operand?
5	Any	<=	Any	Is the left operand less than or equal to the right operand?
5	Any	<	Any	Is the left operand less than the right operand?
6	Any	==	Any	Are the operands equal?
6	Any	!=	Any	Are the operands unequal?

Logical Operators

precedence	operand	operator	operand	description
10	Boolean	&&	Boolean	Are both the operands true?
11	Boolean	||	Boolean	Is one of the operands true?

Bitwise Operators

precedence	operand	operator	operand	description
4	Integer	<<	Integer	The bitwise left shift operator shifts the left operand in binary representation right operand number of bits to the left
4	Integer	>>	Integer	The bitwise left shift operator shifts the left operand in binary representation right operand number of bits to the right
7	Integer	&	Integer	The bitwise and operator returns a one in each bit position for which the corresponding bits of both operands are ones
8	Integer	^	Integer	The bitwise xor returns a zero in each bit position for which the corresponding bits are the same
9	Integer	|	Integer	The bitwise or returns a zero in each bit position for which the corresponding bits of both operands are zeros

Assignment Operators

precedence	operand	operator	operand	description/equivalent
12	Number	**=	Number	left_operand = left_operand ** right_operand
13	Number	*=	Number	left_operand = left_operand * right_operand
13	Number	/=	Number	left_operand = left_operand / right_operand
13	Number	%=	Number	left_operand = left_operand % right_operand
14	String	+=	String	left_operand = left_operand + right_operand
14	Number	+=	Number	left_operand = left_operand + right_operand
14	Number	-=	Number	left_operand = left_operand - right_operand
15	Number	>>=	Number	left_operand = left_operand >> right_operand
15	Number	<<=	Number	left_operand = left_operand << right_operand
16	Number	&=	Number	left_operand = left_operand & right_operand
17	Number	^=	Number	left_operand = left_operand ^ right_operand
18	Number	|=	Number	left_operand = left_operand | right_operand
19	Boolean	&&=	Boolean	left_operand = left_operand && right_operand
20	Boolean	||=	Boolean	left_operand = left_operand || right_operand
21	Any	=	Any	Assigns the right value to the left

Conditional Operator

The conditional operator is the only operator which takes three operands:

operand if operand else operand

Where the first operand signifies the value if the second operand is true, otherwise the third operand is the value of the operation.