// add returns the sum of its arguments and a boolean flag which is false if the result overflows an int.
add returns the sum of its arguments and a boolean flag which is false if the result overflows an int.
// add returns the sum of its arguments and a boolean flag which is false if the result overflows an int .
func add(a, b int) (value int, ok bool) {
	result := a + b
	if ((a ^ result) & (b ^ result)) < 0 {
		return result, false
	}
	return result, true
}
func add ( a , b int ) ( value int , ok bool ) { result := a + b if ( ( a ^ result ) & ( b ^ result ) ) < 0 { return result , false } return result , true }
add returns the sum of its arguments and a boolean flag which is false if the result overflows an int.
add returns the sum of its arguments and a boolean flag which is false if the result overflows an int .
//Overflow if both arguments have the opposite sign of the result.