Extract public version of SweepLB

1 files changed, 30 insertions, 0 deletions

diff --git a/src/LLBM/bounce_back.h b/src/LLBM/bounce_back.h
new file mode 100644
index 0000000..b710ee4
--- /dev/null
+++ b/src/LLBM/bounce_back.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "concepts.h"
+
+struct BounceBackO {
+
+template <concepts::Arithmetic V>
+static void apply(V f_curr[19], V f_next[19]) {
+	f_next[0] = f_curr[18];
+	f_next[1] = f_curr[17];
+	f_next[2] = f_curr[16];
+	f_next[3] = f_curr[15];
+	f_next[4] = f_curr[14];
+	f_next[5] = f_curr[13];
+	f_next[6] = f_curr[12];
+	f_next[7] = f_curr[11];
+	f_next[8] = f_curr[10];
+	f_next[9] = f_curr[9];
+	f_next[10] = f_curr[8];
+	f_next[11] = f_curr[7];
+	f_next[12] = f_curr[6];
+	f_next[13] = f_curr[5];
+	f_next[14] = f_curr[4];
+	f_next[15] = f_curr[3];
+	f_next[16] = f_curr[2];
+	f_next[17] = f_curr[1];
+	f_next[18] = f_curr[0];
+}
+
+};