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Diffstat (limited to 'deps/lzma-16.04/C/RotateDefs.h')
-rw-r--r-- | deps/lzma-16.04/C/RotateDefs.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/deps/lzma-16.04/C/RotateDefs.h b/deps/lzma-16.04/C/RotateDefs.h new file mode 100644 index 0000000..6c790e7 --- /dev/null +++ b/deps/lzma-16.04/C/RotateDefs.h @@ -0,0 +1,30 @@ +/* RotateDefs.h -- Rotate functions
+2015-03-25 : Igor Pavlov : Public domain */
+
+#ifndef __ROTATE_DEFS_H
+#define __ROTATE_DEFS_H
+
+#ifdef _MSC_VER
+
+#include <stdlib.h>
+
+/* don't use _rotl with MINGW. It can insert slow call to function. */
+
+/* #if (_MSC_VER >= 1200) */
+#pragma intrinsic(_rotl)
+#pragma intrinsic(_rotr)
+/* #endif */
+
+#define rotlFixed(x, n) _rotl((x), (n))
+#define rotrFixed(x, n) _rotr((x), (n))
+
+#else
+
+/* new compilers can translate these macros to fast commands. */
+
+#define rotlFixed(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+#define rotrFixed(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
+
+#endif
+
+#endif
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