--- /dev/null
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CDSLIB_COMPILER_VC_AMD64_BITOP_H
+#define CDSLIB_COMPILER_VC_AMD64_BITOP_H
+
+#if _MSC_VER == 1500
+ /*
+ VC 2008 bug:
+ math.h(136) : warning C4985: 'ceil': attributes not present on previous declaration.
+ intrin.h(142) : see declaration of 'ceil'
+
+ See http://connect.microsoft.com/VisualStudio/feedback/details/381422/warning-of-attributes-not-present-on-previous-declaration-on-ceil-using-both-math-h-and-intrin-h
+ */
+# pragma warning(push)
+# pragma warning(disable: 4985)
+# include <intrin.h>
+# pragma warning(pop)
+#else
+# include <intrin.h>
+#endif
+
+#pragma intrinsic(_BitScanReverse)
+#pragma intrinsic(_BitScanForward)
+#pragma intrinsic(_BitScanReverse64)
+#pragma intrinsic(_BitScanForward64)
+
+//@cond none
+namespace cds {
+ namespace bitop { namespace platform { namespace vc { namespace amd64 {
+
+ // MSB - return index (1..32) of most significant bit in nArg. If nArg == 0 return 0
+# define cds_bitop_msb32_DEFINED
+ static inline int msb32( uint32_t nArg )
+ {
+ unsigned long nIndex;
+ if ( _BitScanReverse( &nIndex, nArg ))
+ return (int) nIndex + 1;
+ return 0;
+ }
+
+# define cds_bitop_msb32nz_DEFINED
+ static inline int msb32nz( uint32_t nArg )
+ {
+ assert( nArg != 0 );
+ unsigned long nIndex;
+ _BitScanReverse( &nIndex, nArg );
+ return (int) nIndex;
+ }
+
+ // LSB - return index (1..32) of least significant bit in nArg. If nArg == 0 return -1U
+# define cds_bitop_lsb32_DEFINED
+ static inline int lsb32( uint32_t nArg )
+ {
+ unsigned long nIndex;
+ if ( _BitScanForward( &nIndex, nArg ))
+ return (int) nIndex + 1;
+ return 0;
+ }
+
+# define cds_bitop_lsb32nz_DEFINED
+ static inline int lsb32nz( uint32_t nArg )
+ {
+ assert( nArg != 0 );
+ unsigned long nIndex;
+ _BitScanForward( &nIndex, nArg );
+ return (int) nIndex;
+ }
+
+
+# define cds_bitop_msb64_DEFINED
+ static inline int msb64( uint64_t nArg )
+ {
+ unsigned long nIndex;
+ if ( _BitScanReverse64( &nIndex, nArg ))
+ return (int) nIndex + 1;
+ return 0;
+ }
+
+# define cds_bitop_msb64nz_DEFINED
+ static inline int msb64nz( uint64_t nArg )
+ {
+ assert( nArg != 0 );
+ unsigned long nIndex;
+ _BitScanReverse64( &nIndex, nArg );
+ return (int) nIndex;
+ }
+
+# define cds_bitop_lsb64_DEFINED
+ static inline int lsb64( uint64_t nArg )
+ {
+ unsigned long nIndex;
+ if ( _BitScanForward64( &nIndex, nArg ))
+ return (int) nIndex + 1;
+ return 0;
+ }
+
+# define cds_bitop_lsb64nz_DEFINED
+ static inline int lsb64nz( uint64_t nArg )
+ {
+ assert( nArg != 0 );
+ unsigned long nIndex;
+ _BitScanForward64( &nIndex, nArg );
+ return (int) nIndex;
+ }
+
+# define cds_bitop_complement32_DEFINED
+ static inline bool complement32( uint32_t * pArg, unsigned int nBit )
+ {
+ return _bittestandcomplement( reinterpret_cast<long *>( pArg ), nBit ) != 0;
+ }
+
+# define cds_bitop_complement64_DEFINED
+ static inline bool complement64( uint64_t * pArg, unsigned int nBit )
+ {
+ return _bittestandcomplement64( reinterpret_cast<__int64 *>( pArg ), nBit ) != 0;
+ }
+
+
+ }} // namespace vc::amd64
+
+ using namespace vc::amd64;
+
+}}} // namespace cds::bitop::platform
+//@endcond
+
+#endif // #ifndef CDSLIB_COMPILER_VC_AMD64_BITOP_H