summaryrefslogtreecommitdiffstats
path: root/C/RotateDefs.h
diff options
context:
space:
mode:
Diffstat (limited to 'C/RotateDefs.h')
-rwxr-xr-xC/RotateDefs.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/C/RotateDefs.h b/C/RotateDefs.h
new file mode 100755
index 0000000..ff9b722
--- /dev/null
+++ b/C/RotateDefs.h
@@ -0,0 +1,20 @@
+/* RotateDefs.h -- Rotate functions
+2009-02-07 : Igor Pavlov : Public domain */
+
+#ifndef __ROTATE_DEFS_H
+#define __ROTATE_DEFS_H
+
+#ifdef _MSC_VER
+
+#include <stdlib.h>
+#define rotlFixed(x, n) _rotl((x), (n))
+#define rotrFixed(x, n) _rotr((x), (n))
+
+#else
+
+#define rotlFixed(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+#define rotrFixed(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
+
+#endif
+
+#endif