fn backtrack_pattern()

in src/memtest.rs [944:951]

• 8 lines of code
• 2 McCabe index (conditional complexity)

        fn backtrack_pattern(&mut self) -> usize {
            self.pattern = self.pattern.rotate_right(1);
            if self.run_idx % 2 == 0 {
                self.pattern
            } else {
                !self.pattern
            }
        }