aboutsummaryrefslogtreecommitdiff
path: root/deps/lzma-16.04/C/RotateDefs.h
diff options
context:
space:
mode:
Diffstat (limited to 'deps/lzma-16.04/C/RotateDefs.h')
-rw-r--r--deps/lzma-16.04/C/RotateDefs.h30
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