Litmus test (politics) Litmus test (politics) A litmus test is a question asked of a potential candidate for high office, the answer to which would determine whether the nominating official would proceed with the appointment or nomination. The expression is a metaphor based on the litmus test in chemistry, in which one is able to test the general acidity of a substance, but not its exact pH. Those who must approve a nominee, such as a justice of the Supreme Court of the United States, may also be said to apply a litmus test to determine whether the nominee will receive their vote.
GCD test arrays present in two or more statements, it can be calculated whether it is legal to parallelize the loop or not. A linear Diophantine equation has an integer solution x1, x2..., xn iff GCD (a1,a2.., an) divides c. E.g. GCD(2,-2) =2, 2 cannot divide 1. So, there is no integer solution for the equation above. It is difficult to analyze array references in compile time to determine data dependency (whether they point to same address or not). A simple and sufficient test for the absence of a dependence is the greatest common divisor (GCD) test. It is based on the