/* { "description" : "An object to represent and manipulate signed 64-bit integers (Dana primitive integers are all unsigned)." } */

interface SignedInt8 {
	/* { "@description" : "Creates a new 64-bit signed integer instance, initialised either from an absolute value (val) or from a positive value which should be made negative (neg)." } */
	SignedInt8(opt int8 val, opt int8 neg)
	
	/* { "@description" : "Subtract a given 64-bit signed integer value from this instance's current value." } */
	int8 subtract(int8 val)
	
	/* { "@description" : "Add a given 64-bit signed integer value to this instance's current value." } */
	int8 add(int8 val)

	/* { "@description" : "Multiply this instance's current value by a given 64-bit signed integer value." } */
	int8 multiply(int8 val)

	/* { "@description" : "Divide this instance's current value by a given 64-bit signed integer value." } */
	int8 divide(int8 val)

	/* { "@description" : "Get the value of this 64-bit signed integer, as an int4, suitable for use as a parameter to other SignedInt4 instances." } */
	int8 getValue()

	/* { "@description" : "Set the value of this 64-bit signed integer." } */
	void setValue(int8 v)

	/* { "@description" : "Test is this signed integer instance currently holds a negative value." } */
	bool isNegative()

	/* { "@description" : "Invert the sign of this signed integer instance, changing it from positive to negative, or vice-versa." } */
	void invert()
	
	/* { "@description" : "Get the raw bytes of this signed integer instance." } */
	byte[] getBytes()
	
	}