fixed adding file problem

[c11concurrency-benchmarks.git] / gdax-orderbook-hpp / demo / dependencies / libcds-2.3.2 / cds / details / aligned_allocator.h

diff --git a/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/details/aligned_allocator.h b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/details/aligned_allocator.h
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+/*
+    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_DETAILS_ALIGNED_ALLOCATOR_H
+#define CDSLIB_DETAILS_ALIGNED_ALLOCATOR_H
+
+#include <cds/details/defs.h>
+#include <cds/user_setup/allocator.h>
+
+namespace cds { namespace details {
+
+    /// Allocator for aligned data
+    /**
+        The class is the wrapper around user-defined aligned allocator.
+        Template parameters:
+        \li \p T is a type to allocate
+        \li \p ALIGNED_ALLOCATOR is an aligned allocator implementation. Default implementation is defined by macro
+        CDS_DEFAULT_ALIGNED_ALLOCATOR from cds/user_setup/allocator.h header file.
+
+        The \p nAlign parameter of member function specifyes desired aligment of data allocated.
+
+        \par Note
+        When an array allocation is performed the allocator guarantees the alignment for first element of array only.
+        To guarantee the alignment for each element of the array the size of type \p T must be multiple of \p nAlign:
+        \code
+        sizeof(T) % nAlign == 0
+        \endcode
+    */
+    template <
+        typename T
+        , typename ALIGNED_ALLOCATOR = CDS_DEFAULT_ALIGNED_ALLOCATOR
+    >
+    class AlignedAllocator: public ALIGNED_ALLOCATOR::template rebind<T>::other
+    {
+    public:
+        /// Underlying aligned allocator type
+        typedef typename ALIGNED_ALLOCATOR::template rebind<T>::other   allocator_type;
+
+        /// Analogue of operator new T(\p src... )
+        template <typename... S>
+        T *  New( size_t nAlign, const S&... src )
+        {
+            return Construct( allocator_type::allocate( nAlign, 1), src... );
+        }
+
+        /// Analogue of operator new T[\p nCount ]
+        T * NewArray( size_t nAlign, size_t nCount )
+        {
+            T * p = allocator_type::allocate( nAlign, nCount );
+            for ( size_t i = 0; i < nCount; ++i )
+                Construct( p + i );
+            return p;
+        }
+
+        /// Analogue of operator new T[\p nCount ].
+        /**
+            Each item of array of type T is initialized by parameter \p src.
+        */
+        template <typename S>
+        T * NewArray( size_t nAlign, size_t nCount, const S& src )
+        {
+            T * p = allocator_type::allocate( nAlign, nCount );
+            for ( size_t i = 0; i < nCount; ++i )
+                Construct( p + i, src );
+            return p;
+        }
+
+        /// Analogue of operator delete
+        void Delete( T * p )
+        {
+            allocator_type::destroy( p );
+            allocator_type::deallocate( p, 1 );
+        }
+
+        /// Analogue of operator delete []
+        void Delete( T * p, size_t nCount )
+        {
+            for ( size_t i = 0; i < nCount; ++i )
+                allocator_type::destroy( p + i );
+            allocator_type::deallocate( p, nCount );
+        }
+
+        /// Analogue of placement operator new( \p p ) T( \p src... )
+        template <typename... S>
+        T * Construct( void * p, const S&... src )
+        {
+            return new( p ) T( src... );
+        }
+
+        /// Rebinds allocator to other type \p Q instead of \p T
+        template <typename Q>
+        struct rebind {
+            typedef AlignedAllocator< Q, typename ALIGNED_ALLOCATOR::template rebind<Q>::other >    other ; ///< Rebinding result
+        };
+    };
+
+}} // namespace cds::details
+
+#endif // #ifndef CDSLIB_DETAILS_ALIGNED_ALLOCATOR_H