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Diffstat (limited to 'trunk/src/lib/lib7z/RotateDefs.h')
-rw-r--r--trunk/src/lib/lib7z/RotateDefs.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/trunk/src/lib/lib7z/RotateDefs.h b/trunk/src/lib/lib7z/RotateDefs.h
new file mode 100644
index 00000000000..c3a1385ce5a
--- /dev/null
+++ b/trunk/src/lib/lib7z/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